$ git clone -n https://src.fedoraproject.org/rpms/mangohud.git /var/lib/mock/f40-build-797688-141433/root/chroot_tmpdir/scmroot/mangohud
Cloning into '/var/lib/mock/f40-build-797688-141433/root/chroot_tmpdir/scmroot/mangohud'...
$ git fetch origin 582be747b0cd349019c1c54106171a78b40627a5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mangohud
 * [new ref]         582be747b0cd349019c1c54106171a78b40627a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 582be74 Build mangoapp to support mangohud in gamescope