Android :: Implementing Sync Adapter / Sync Icon Wont Disappear

I'm implementing my own sync adapter and everything works great. A strange i'm having is that after the sync is over, the Android still shows the sync icon (the one with the rounded arrow) in the account activity, and that someone (i guess its the account manager) repeatedly calls the sync again and again, every 30 to 60 seconds. Now i tried all sort of things to test this issue and i have discovered something strange. In my code, i do resolver.applyBatch every 50 new rows. (each new contact i sync has about 5 rows). If i remove the applyBatch (which means i retrieve the data from the next, sort it and prepare it, but never "commit" it) - the problem goes away. The icon disappear and the account manager never calls it again on its own (I'm using Android 2.1). I must also state that no exception is being thrown in any of the cases and that all the methods finish gracefully.