diff --git a/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore OSX.xcscheme b/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore OSX.xcscheme
index 0e3954f..37f42c2 100644
--- a/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore OSX.xcscheme	
+++ b/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore OSX.xcscheme	
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1200"
+   LastUpgradeVersion = "1300"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore iOS.xcscheme b/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore iOS.xcscheme
index 492e68f..9f7b0dc 100644
--- a/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore iOS.xcscheme	
+++ b/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore iOS.xcscheme	
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1200"
+   LastUpgradeVersion = "1300"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore tvOS.xcscheme b/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore tvOS.xcscheme
index 2c5ba8a..668f835 100644
--- a/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore tvOS.xcscheme	
+++ b/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore tvOS.xcscheme	
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1200"
+   LastUpgradeVersion = "1300"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore watchOS.xcscheme b/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore watchOS.xcscheme
index 45d25d4..f018b39 100644
--- a/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore watchOS.xcscheme	
+++ b/CoreStore.xcodeproj/xcshareddata/xcschemes/CoreStore watchOS.xcscheme	
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1200"
+   LastUpgradeVersion = "1300"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Demo/Demo.xcodeproj/project.pbxproj b/Demo/Demo.xcodeproj/project.pbxproj
index 636161f..6319775 100644
--- a/Demo/Demo.xcodeproj/project.pbxproj
+++ b/Demo/Demo.xcodeproj/project.pbxproj
@@ -41,12 +41,6 @@
 		B5A3916524E698C700E7E8BD /* Modern.PlacemarksDemo.Place.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5A3916424E698C700E7E8BD /* Modern.PlacemarksDemo.Place.swift */; };
 		B5A3916B24E698F900E7E8BD /* CoreStore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B5A3916724E698F900E7E8BD /* CoreStore.framework */; };
 		B5A3916C24E698F900E7E8BD /* CoreStore.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = B5A3916724E698F900E7E8BD /* CoreStore.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
-		B5A3916D24E698F900E7E8BD /* CoreStore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B5A3916824E698F900E7E8BD /* CoreStore.framework */; };
-		B5A3916E24E698F900E7E8BD /* CoreStore.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = B5A3916824E698F900E7E8BD /* CoreStore.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
-		B5A3916F24E698F900E7E8BD /* CoreStore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B5A3916924E698F900E7E8BD /* CoreStore.framework */; };
-		B5A3917024E698F900E7E8BD /* CoreStore.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = B5A3916924E698F900E7E8BD /* CoreStore.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
-		B5A3917124E698F900E7E8BD /* CoreStore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B5A3916A24E698F900E7E8BD /* CoreStore.framework */; };
-		B5A3917224E698F900E7E8BD /* CoreStore.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = B5A3916A24E698F900E7E8BD /* CoreStore.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		B5A3917524E6990200E7E8BD /* MapKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B5A3917424E6990200E7E8BD /* MapKit.framework */; };
 		B5A3917724E6990700E7E8BD /* CoreLocation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B5A3917624E6990700E7E8BD /* CoreLocation.framework */; };
 		B5A3917924E6991600E7E8BD /* SwiftUI.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B5A3917824E6991600E7E8BD /* SwiftUI.framework */; };
@@ -116,9 +110,6 @@
 			dstSubfolderSpec = 10;
 			files = (
 				B5A3916C24E698F900E7E8BD /* CoreStore.framework in Embed Frameworks */,
-				B5A3917224E698F900E7E8BD /* CoreStore.framework in Embed Frameworks */,
-				B5A3917024E698F900E7E8BD /* CoreStore.framework in Embed Frameworks */,
-				B5A3916E24E698F900E7E8BD /* CoreStore.framework in Embed Frameworks */,
 			);
 			name = "Embed Frameworks";
 			runOnlyForDeploymentPostprocessing = 0;
@@ -234,11 +225,8 @@
 			files = (
 				B5A3917724E6990700E7E8BD /* CoreLocation.framework in Frameworks */,
 				B5A3916B24E698F900E7E8BD /* CoreStore.framework in Frameworks */,
-				B5A3917124E698F900E7E8BD /* CoreStore.framework in Frameworks */,
 				B5A3917924E6991600E7E8BD /* SwiftUI.framework in Frameworks */,
 				B5A3917524E6990200E7E8BD /* MapKit.framework in Frameworks */,
-				B5A3916F24E698F900E7E8BD /* CoreStore.framework in Frameworks */,
-				B5A3916D24E698F900E7E8BD /* CoreStore.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -633,7 +621,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 1160;
-				LastUpgradeCheck = 1200;
+				LastUpgradeCheck = 1300;
 				TargetAttributes = {
 					B5A3911824E5429200E7E8BD = {
 						CreatedOnToolsVersion = 11.6;
@@ -809,6 +797,7 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				ONLY_ACTIVE_ARCH = YES;
 			};
 			name = Debug;
 		};
diff --git a/Demo/Demo.xcodeproj/xcshareddata/xcschemes/Demo.xcscheme b/Demo/Demo.xcodeproj/xcshareddata/xcschemes/Demo.xcscheme
index bae747d..2e8c7e3 100644
--- a/Demo/Demo.xcodeproj/xcshareddata/xcschemes/Demo.xcscheme
+++ b/Demo/Demo.xcodeproj/xcshareddata/xcschemes/Demo.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1200"
+   LastUpgradeVersion = "1300"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Sources/ListMonitor.swift b/Sources/ListMonitor.swift
index 0b98bb9..4487704 100644
--- a/Sources/ListMonitor.swift
+++ b/Sources/ListMonitor.swift
@@ -648,7 +648,7 @@ public final class ListMonitor<O: DynamicObject>: Hashable {
      */
     public func refetch(
         _ fetchClauses: FetchClause...,
-        sourceIdentifier: Any?
+        sourceIdentifier: Any? = nil
     ) {
         
         self.refetch(
@@ -668,7 +668,7 @@ public final class ListMonitor<O: DynamicObject>: Hashable {
      */
     public func refetch(
         _ fetchClauses: [FetchClause],
-        sourceIdentifier: Any?
+        sourceIdentifier: Any? = nil
     ) {
         
         self.refetch(