$ git clone -n https://src.fedoraproject.org/rpms/rust-lv2-worker.git /var/lib/mock/f38-build-side-42-init-devel-1222093-30639/root/chroot_tmpdir/scmroot/rust-lv2-worker
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1222093-30639/root/chroot_tmpdir/scmroot/rust-lv2-worker'...
$ git fetch origin 74ac1ecf0d85f49feaa7a25db61523bcdca22815:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lv2-worker
 * [new ref]         74ac1ecf0d85f49feaa7a25db61523bcdca22815 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 74ac1ec Initial import; Fixes: RHBZ#2224771