Close bulk merge request issue

Summary

After clicking Edit Merge Requests button on merge requests screen, then selecting few or all merge requests by checkboxes and changing status to closed doesn't apply.

Steps to reproduce

• Go to Merge Requests Page
• Click on Merged Tab
• Click on Edit Merge Requests button - Checkboxes will appear on the left side of each merge request on the list.
• Select more than one merge request by checking checkboxes
• On the right side bar under Status option, select Closed
• Click on Update All button above.

What is the current bug behavior?

After clicking Update All button, page reloads but selected merge requests still in Merged status and didn't close.

What is the expected correct behavior?

Merged MRs cannot be closed, as they are merged. This is a confusing aspect of the update All functionality where the update all options do not align to the actual options available for the merge requests. A simple improvement here is simply to remove the Status section from the Bulk Actions sidebar when viewing the Merged tab:

Relevant logs and/or screenshots