(using yt-dlp) (to Small short test video [zGDzdps75ns].webm)
ok
(recording state in git...)
+$ git commit -m 'test'
$ echo test | sudo tee './Small short test video [zGDzdps75ns].webm'
test
$ git annex fsck './Small short test video [zGDzdps75ns].webm'
(recording state in git...)
```
+In contrast, doing the same thing to a non-youtube video via addurl _does_ get detected by fsck:
+
+```
+$ git annex addurl 'https://git-annex.branchable.com/logo_small.png'
+addurl https://git-annex.branchable.com/logo_small.png
+(to git-annex.branchable.com_logo_small.png) ok
+(recording state in git...)
+$ git commit -m 'test'
+$ echo test | sudo tee ./git-annex.branchable.com_logo_small.png
+test
+$ git annex fsck ./git-annex.branchable.com_logo_small.png
+fsck git-annex.branchable.com_logo_small.png
+ git-annex.branchable.com_logo_small.png: Bad file size (4.74 kB smaller); moved to .git/annex/bad/SHA256E-s4749--c604d942bd8edebe5e8e01d18d1ad3604b0874c38d436c9486c52d601e4251dd.png
+failed
+(recording state in git...)
+fsck: 1 failed
+```
+
+
### What version of git-annex are you using? On what operating system?