$ git clone -n https://src.fedoraproject.org/rpms/isoimagewriter.git /var/lib/mock/f40-build-2165282-50976/root/chroot_tmpdir/scmroot/isoimagewriter
Cloning into '/var/lib/mock/f40-build-2165282-50976/root/chroot_tmpdir/scmroot/isoimagewriter'...
$ git fetch origin c7e53c757b38a0797ce669315ee3aaacd55e7d4b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/isoimagewriter
 * [new ref]         c7e53c757b38a0797ce669315ee3aaacd55e7d4b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c7e53c7 24.01.85