`module m =` in a Markdown code block causes a parse error (BB-10592)

I cannot see some .md files that include module m = string in a code block.

This repo reproduces this bug.
https://bitbucket.org/teppeis/bitbucket-markdown-bug-module-m/\\
https://bitbucket.org/teppeis/bitbucket-markdown-bug-module-m/src/bb2b3f93fe8f373fa7a065b29cfc2301ff51d12d/reproduce.md?at=master