GNOME Disks doesn't have an option to check filesystems

This used to be the “Check Filesystem” button in Disk Utility but I couldn’t find it in GNOME Disks 3.12.

I found a couple of other people complaining about this online, so I don’t think that I simply missed it.

So this breaks the instructions to check the file system of the persistent volume:

Will this feature be back at some point in GNOME Disks or shall we go for an alternative solution?

Original created by @sajolida on 8070 (Redmine)

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