test-compat: revert output change on pull report The revert the changeset from 8feb2cae7eae. Not relevant for verison < 4.4.

test-compat: revert output change from 'phase' part The output change were introduced in changeset from 87e349f617f9 and it not relevant for version lower than 4.4.

test-compat: revert output change from using core obsfate The output update arrives in e91ca8b5ecf7. This output is only relevant for Mercurial 4.4

topic: do to check to topic while amending Right know the 'topic-mode' mess with amend. Especially in case of amending merge where the merge is not properly detected.

topic-mode: add missing end line in topic-mode warning

compat: work around the lack of configoverride in mercurial 4.0 The phase preservation will stay broken on 4.0 and below

compat: add an abstraction for 'scmutil.cleanupnodes' The usage of the function was added in 103244e34a9c but is not compatible with Mercurial <= 4.2.

compat: conditionally access config item Version 4.2 and below do not have config items support. So the extensions helper do not register anything.

compat: handle version where obsutil is not available Version older than 4.3 is do not have the obsutil option. We need to handle that.

test: use node instead of rev in topic push tests This makes the test more stable when revision number changes.