Really fix edge case where TDPuller never stops if told to stop before it catches up
Really fix edge case where TDPuller never stops if told to stop before it catches up

There was a second place in the code where I needed to make the same change,
to make the fix really work...
Fixes #169 (I hope, again)

myDario/couchbase-lite-ios,pegli/couchbase-lite-ios,mz2/couchbase-lite-ios,Chavenay/couchbase-lite-ios,couchbase/couchbase-lite-ios,alfared/couchbase-lite-ios,pegli/couchbase-lite-ios,jkingyens/couchbase-lite-ios,alfared/couchbase-lite-ios,lordkev/couchbase-lite-ios,evsukov89/couchbase-lite-ios,ryuzmukhametov/couchbase-lite-ios,tomco/couchbase-lite-ios,mz2/couchbase-lite-ios,ipmobiletech/couchbase-lite-ios,pegli/couchbase-lite-ios,jkingyens/couchbase-lite-ios,brendand/couchbase-lite-ios,myDario/couchbase-lite-ios,lordkev/couchbase-lite-ios,pegli/couchbase-lite-ios,couchbase/couchbase-lite-ios,ryuzmukhametov/couchbase-lite-ios,mz2/couchbase-lite-ios,lordkev/couchbase-lite-ios,Chavenay/couchbase-lite-ios,amco/couchbase-lite-ios,ryuzmukhametov/couchbase-lite-ios,pellekrogholt/couchbase-lite-ios,tomco/couchbase-lite-ios,gotmyjobs/couchbase-lite-ios,couchbase/couchbase-lite-ios,couchbase/couchbase-lite-ios,ipmobiletech/couchbase-lite-ios,jkingyens/couchbase-lite-ios,macoscope/couchbase-lite-ios,pellekrogholt/couchbase-lite-ios,couchbase/couchbase-lite-ios,amco/couchbase-lite-ios,alfared/couchbase-lite-ios,gotmyjobs/couchbase-lite-ios,amco/couchbase-lite-ios,alfared/couchbase-lite-ios,couchbase/couchbase-lite-ios,ipmobiletech/couchbase-lite-ios,brendand/couchbase-lite-ios,myDario/couchbase-lite-ios,brendand/couchbase-lite-ios,macoscope/couchbase-lite-ios,gotmyjobs/couchbase-lite-ios,gotmyjobs/couchbase-lite-ios,pellekrogholt/couchbase-lite-ios,evsukov89/couchbase-lite-ios,amco/couchbase-lite-ios,tomco/couchbase-lite-ios,amco/couchbase-lite-ios,amco/couchbase-lite-ios,ipmobiletech/couchbase-lite-ios,jkingyens/couchbase-lite-ios,evsukov89/couchbase-lite-ios,Chavenay/couchbase-lite-ios,ryuzmukhametov/couchbase-lite-ios,lordkev/couchbase-lite-ios,tomco/couchbase-lite-ios,macoscope/couchbase-lite-ios,pellekrogholt/couchbase-lite-ios,brendand/couchbase-lite-ios,macoscope/couchbase-lite-ios,brendand/couchbase-lite-ios,amco/couchbase-lite-ios