The "Reference in new issue" option shows up in a menu when looking at
pull requests. All the other options there follow the "Title case":
* Copy Link
* Quote Reply
* Edit
This patch makes sure this option also follow the Title case.
Screenshot of how it looks without this patch:
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Co-authored-by: Dalai Felinto <dalai@blender.org>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>