Issue #3069260 by quietone, andypost, guilhermevp, anmolgoyal74, rahulkhandelwal1990, Meenakshi_j, hmendes, mikelutz, swatichouhan012: Deprecate Drupal\comment\Plugin\migrate\source\d6\Comment::prepareComment()

Issue #2784203 by anmolgoyal74, gianani, rahulkhandelwal1990, Krzysztof Domański, gawaksh, kanav_7, fabienly, shubham.prakash, ravi.shankar, joachim, dgilles3, Chi, alexpott, catch: Entity query needs to clarify what 'current revision' means