Log Message:
Update to 3.1.2:

TortoiseHg 3.1.2 is a regularly scheduled bug-fix release.

Since 3.1, Mercurial commands are run in separate command server
process. It generally contributes to reliability, but if you have
a faulty extension or an in-process Python hook, it can corrupt
the communication channel between TortoiseHg and the command server.

If you see an error message like "cmdserver: timeout while reading...",
please report it with the list of enabled third-party extensions
and their versions. Currently, reviewboard (#3841) and onsub (#3924)
extensions are known to have this issue.

Bug Fixes

    commit: correct boundary value to disable pygments parsing
    (refs #3910)
    commit: do not show username prompt if ui.user is set (fixes
    #3901)
    obsolete: look for markers even if intermediate revisions are
    hidden
    repomodel, sync: fix performance regression on repo having many
    named branches (fixes #3912)
    tag: propagate --force option properly on remove