Closing issues depends on browser window width

Here is an issue created with the side panel open:

Screenshot_2018-02-13_09-30-311241×693 65.5 KB

It correctly is closed (issue count goes down):

Screenshot_2018-02-13_09-30-431240×683 75.1 KB

Here is an issue in a narrower window with the side panel closed:

Screenshot_2018-02-13_09-31-21949×631 45.9 KB

After closing it:

Screenshot_2018-02-13_09-31-33952×702 55 KB

the issue still remains when the side panel is opened:

Screenshot_2018-02-13_09-31-41945×418 29.8 KB

This is the version of gitlab:

browser:

and OS:

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