--overwrite doesn't overwrite broken symlinks

[dirn]

Paste the command

igir link test --symlink --overwrite --dat=$DAT_PATH/ --input=$BACKUPS/OSCR/ --output=$HOME/ROMs/{es}/

Describe the bug

I had a few bad dumps that were symlinked into my ROMs folder without DAT verification. I deleted the source file, placing the symlinks in a broken state. I redumped the games, placing the new dumps in a different location than the originals. I ran the above command and received errors. The broken symlinks were left behind.

Expected behavior

I expected the broken symlinks to be removed and replaced with ones pointing to the files matched by igir.

Debug logs

[14:41:28.587] INFO:  CandidateWriter: Nintendo - Nintendo Entertainment System (Headered): Ninja Gaiden (USA): creating symlink '/Users/dirn/Backups/OSCR/nes/Ninja Gaiden (USA).nes' →
'/Users/dirn/ROMs/nes/Ninja Gaiden (USA).nes'
[14:41:28.588] ERROR: CandidateWriter: Nintendo - Nintendo Entertainment System (Headered): Ninja Gaiden (USA): /Users/dirn/ROMs/nes/Ninja Gaiden (USA).nes: failed to link from
/Users/dirn/Backups/OSCR/nes/Ninja Gaiden (USA).nes: EEXIST: file already exists, symlink '/Users/dirn/Backups/OSCR/nes/Ninja Gaiden (USA).nes' ->
'/Users/dirn/ROMs/nes/Ninja Gaiden (USA).nes'

DAT(s) used

No response

igir version

3.0.1

Node.js version

N/A

Operating system

macOS 15.2

Additional context

I only receive the errors for games that have broken symlinks. If I manually remove those, new ones are created. And subsequent runs don't error.

[emmercm]

I found out what's happening. Igir doesn't think broken links exist on disk, so then there's "nothing" to delete before writing, resulting in an issue on write.