$ git clone -n https://src.fedoraproject.org/rpms/kdesdk-thumbnailers.git /var/lib/mock/f41-build-846304-163038/root/chroot_tmpdir/scmroot/kdesdk-thumbnailers
Cloning into '/var/lib/mock/f41-build-846304-163038/root/chroot_tmpdir/scmroot/kdesdk-thumbnailers'...
$ git fetch origin 39598ba34f364e56e8bfb21f43fbe2ca9b1fedd9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdesdk-thumbnailers
 * [new ref]         39598ba34f364e56e8bfb21f43fbe2ca9b1fedd9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39598ba 24.08.0