$ git clone -n https://src.fedoraproject.org/rpms/coq.git /var/lib/mock/f40-build-2261117-54426/root/chroot_tmpdir/scmroot/coq
Cloning into '/var/lib/mock/f40-build-2261117-54426/root/chroot_tmpdir/scmroot/coq'...
$ git fetch origin ade58869f3a7d6b2a0ca17764dd01835a7a9c6bd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coq
 * [new ref]         ade58869f3a7d6b2a0ca17764dd01835a7a9c6bd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ade5886 Version 8.18.0