We can't hold onto managed objects in our temporary objects because they can disappear from under us, so do the lookup when we propagate values

Limelight/Database/TemporaryApp.h

@@ -18,15 +18,13 @@
 @property (nonatomic) BOOL isRunning;
 @property (nullable, nonatomic, retain) TemporaryHost *host;
 
-@property (nullable, nonatomic) App* parent;
-
 NS_ASSUME_NONNULL_BEGIN
 
 - (id) initFromApp:(App*)app withTempHost:(TemporaryHost*)tempHost;
 
 - (NSComparisonResult)compareName:(TemporaryApp *)other;
 
-- (void) propagateChangesToParent;
+- (void) propagateChangesToParent:(App*)parent withHost:(Host*)host;
 
 NS_ASSUME_NONNULL_END