$ git clone -n https://src.fedoraproject.org/rpms/mcrouter.git /var/lib/mock/f38-build-side-42-init-devel-1278649-30667/root/chroot_tmpdir/scmroot/mcrouter
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1278649-30667/root/chroot_tmpdir/scmroot/mcrouter'...
$ git fetch origin 6170dee8624d2f8d3db9ed39ee36a619e253c5e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mcrouter
 * [new ref]         6170dee8624d2f8d3db9ed39ee36a619e253c5e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6170dee Update to 2023.07.03.00