UTF-8 in commit message displayed incorrectly

Take a look at this commit message: https://bitbucket.org/rstarkov/tankiconmaker/changeset/359b0ab55abd

It contains several typographic apostrophes, all of which are displayed incorrectly. The actual commit message contains them properly encoded as UTF-8.

Please could you support this scenario properly, as UTF-8 is the de-facto standard for encoding Unicode.