Post-commit hook's changes don't show in timeline

[agizis]

When the post-commit-hook resolves a ticket, the "Ticket resolved by" event does not show up in the timeline.

[daniel]

cmlenz: yeah, limitation of the contrib script, it seems cmlenz: should be relatively easy to fix, but I'm not using the script so I'd need to set it up first for testing

[daniel]

* idnar takes a look at #790
idnar: hrm. we use the post-commit-hook quite a lot, and the ticket resolution shows up on the timeline immediately
idnar: I suppose it might be a recent regression
idnar: :/
idnar: I'll update to HEAD and test quickly
idnar: nope, worksforme with HEAD