Fix: Connection not cleaned up after FIN was sent

NearbyShare/Connection/NearbyConnection.swift

@@ -164,6 +164,8 @@ class NearbyConnection {
     private func receiveFrameAsync() {
         connection.receive(minimumIncompleteLength: 4, maximumLength: 4) { content, _, isComplete, error in
             if self.connectionClosed {
+                log("[NearbyConnection \(self.id)] Received FIN from peer, connection closed.")
+                self.connection.cancel()
                 return
             }
             if isComplete {
@@ -201,6 +203,8 @@ class NearbyConnection {
     private func receiveFrameAsync(length: UInt32) {
         connection.receive(minimumIncompleteLength: Int(length), maximumLength: Int(length)) { [self] content, _, isComplete, _ in
             if self.connectionClosed {
+                log("[NearbyConnection \(self.id)] Received FIN from peer, connection closed.")
+                connection.cancel()
                 return
             }
             if isComplete {

QuickDrop.xcodeproj/project.pbxproj

@@ -1239,7 +1239,7 @@
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
-				SHARED_BUILD = 75;
+				SHARED_BUILD = 76;
 				SHARED_VERSION = 2.4.2;
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
@@ -1302,7 +1302,7 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = macosx;
-				SHARED_BUILD = 75;
+				SHARED_BUILD = 76;
 				SHARED_VERSION = 2.4.2;
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
 				SWIFT_COMPILATION_MODE = wholemodule;