Ruby syntax highlighter bug. Tilde (<~) type here-doc affected.

I found this code-highlighting bug in my own repo:
https://bitbucket.org/malam_tiang/fog/src/master/bin/fog_app.rb

Scroll down to line:

Similarity of files is determined by font's sha-sum (for complete

After apostrophe symbol after word "font" rest of the code will became red like it is text-type literal.

This issue was discussed earlier in this support system thread: https://getsupport.atlassian.com/servicedesk/customer/portal/11/BBS-74180

Screenshot with issue:

Correct example from vim: