test-compat: merge mercurial-4.3 into mercurial-4.2

test-compat: merge stable into mercurial-4.3

compat: fix comp ability of the new phase logic for Mercurial < 4.4

config: clarify that config is only enabled on the repository is it setup for This changeset change nothing but clarify a few thing. The ui passed to 'reposetup' is the same as 'repo.ui'. However we would like to clarify things a bit.

branching: merge with an old and strange head

branching: default into stable It is time for a new release

topic: fix new head detection when using --publish on a topic I suspected a bug lurking around there and I found one.

effect-flag: fix obsfate verb hooking Mercurial core commit b81ad5b78a81 renamed a the function we hooked on and update its signature. Update the code to detect that, which fixes tests errors.

test: update test output for effect flag by default Now that effect flag is in core and turned on by default, this affect topic test that did not had the evolve extension turned on all the time. CORE-TEST-OUTPUT-UPDATE: a7e49a5b3e6f

tests: add more testing of pulling with various setting We checks for client/server with various combination: * extensions enabled, * extensions enabled but exchange disabled, * extensions disabled,