[Form][2.3] Fixes empty file-inputs getting treated as extra field. #10251
The test for this already exists, it was just this line that got overwritten by eb9f76d#diff-ca5e25b47f3ecc94cd557946aeb486c6L542
To clarify, this is a PR into 2.3 branch - this already exists in 2.4 (and later from this PR: #9146)
referenced this pull request
Feb 12, 2014
We have to come up with a tool that notifies or verifies the authors of the PRs merged when these type of ripple forward merging of 2.2 or 2.3 is done into the upstream branches. So that perhaps we can verify that @fabpot has not skipped anything since usually is the case that the PR author can say yes or no if things have been rightly merged also. But that is just an idea.
In any case, I believe the problem is twofold. We merged a test which is not a regression test because it does not fail when this change was not imported. This is our current situation. The test did not tell us that this was missing when it should have. This is a critical requirement to add even perhaps a note on the notes for contributors, especially for bugfixes. @jenkoian could you please fix the regression test?
The second part, I forgot