$ git clone -n https://src.fedoraproject.org/rpms/c4fs.git /var/lib/mock/f40-build-793668-139150/root/chroot_tmpdir/scmroot/c4fs
Cloning into '/var/lib/mock/f40-build-793668-139150/root/chroot_tmpdir/scmroot/c4fs'...
$ git fetch origin 1b651c5172b7ab64ebbb3650a4d2efc986f340cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/c4fs
 * [new ref]         1b651c5172b7ab64ebbb3650a4d2efc986f340cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b651c5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild