When using GraphicsMagick, SVG identification fails because the -verbose flag is missing. Apparently without it GraphicsMagick only reads the image data, which is not present on SVG images.
Needs work
3.0
Code
The change is currently missing an automated test that fails when run with the original code, and succeeds when the bug has been fixed.
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It's likely this issue predates Contrib.social: some issue and comment data are missing.