$ git clone -n https://src.fedoraproject.org/rpms/safetyblanket.git /var/lib/mock/f39-build-1880624-42754/root/chroot_tmpdir/scmroot/safetyblanket
Cloning into '/var/lib/mock/f39-build-1880624-42754/root/chroot_tmpdir/scmroot/safetyblanket'...
$ git fetch origin 9e5be5b4ff372efdfa6ac2043dd5bec5751bb7f1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/safetyblanket
 * [new ref]         9e5be5b4ff372efdfa6ac2043dd5bec5751bb7f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e5be5b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild