File not available, better reporting
On 0.8, darktable prints out an individual error for every file that isn't available. This isn't very helpful if several files are gone --- I get a stream of constantly flickering reports of "file not available". Impossible to read anyone of them, because they disappear almost instantenously --- being replaced by the next one.
Haven't really seen and end to the stream of errors either. Feels like it's on a loop.
Suggestion #8271 show a list of all files that are missing.
Suggestion #8272 in said list, allow user to choose "I know. I'm on top of it. Darktable, you just relax and forget about those files." (See ticket #8490.)