Added tag 5.0 for changeset
07e479ef7c96
obsolete: drop the legacy `_enabled` variable
Evolve 8.5.0 stopped setting this, and it would have been easier to figure out
why TortoiseHg stopped allowing amends if it would have crashed on the missing
variable.
discovery: only calculate closed branches if required
The number of new closed branches is required for printing in error message. So
let's only calculate them if we need to print error about new branches.
Differential Revision: https://phab.mercurial-scm.org/D6314