$ git clone -n https://src.fedoraproject.org/rpms/rust-redlib.git /var/lib/mock/f41-build-849150-164738/root/chroot_tmpdir/scmroot/rust-redlib
Cloning into '/var/lib/mock/f41-build-849150-164738/root/chroot_tmpdir/scmroot/rust-redlib'...
$ git fetch origin 3e06f219794736a56c5d74ac0ec990bdf185d56c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-redlib
 * [new ref]         3e06f219794736a56c5d74ac0ec990bdf185d56c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e06f21 Initial import; Fixes: RHBZ#2302683