MAM: Always reset state on reconnect

It was not reset if the previous MAM query was interrupted because of a disconnect
3 jobs for master in 3 minutes and 21 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #11118
run-appdata

00:00:06

passed #11117
run-tests

00:03:03

 
  Build
passed #11119
run-build

00:00:10