The following situation would fail: user opens app A and proceeds to …

…buy compatible app B. When coming back to app A to send to app B, app B would still be in the "more apps" list. I'm clearing the cache on app start so that it will be remade on app startup and the list would be correct then.

PhotoAppLink/PALManager.m

@@ -54,6 +54,9 @@ @implementation PALManager
 // This update is only performed once every few days
 - (void)updateSupportedAppsInBackground
 {
+    // invalidate cached list of supported apps
+    self.supportedApps = nil;
+
     // check if we already updated recently
     NSUserDefaults* userPrefs = [NSUserDefaults standardUserDefaults];
     NSDate* lastUpdateDate = [userPrefs objectForKey:LASTUPDATE_USERPREF_KEY];