flush the git queue when a new type of action is being added to it

This allows the queue to be used in a single process for multiple possibly
conflicting commands, like add and rm, without running them out of order.

This assumes that running the same git subcommand with different parameters
cannot itself conflict.

Annex/Queue.hs

@@ -20,7 +20,7 @@ import Config
 add :: String -> [CommandParam] -> [FilePath] -> Annex ()
 add command params files = do
 	q <- get
-	store $ Git.Queue.add q command params files
+	store =<< inRepo (Git.Queue.add q command params files)
 
 {- Runs the queue if it is full. Should be called periodically. -}
 flushWhenFull :: Annex ()