$ git clone -n https://src.fedoraproject.org/rpms/dmg2img.git /var/lib/mock/f41-build-side-1-2634184-26012/root/chroot_tmpdir/scmroot/dmg2img
Cloning into '/var/lib/mock/f41-build-side-1-2634184-26012/root/chroot_tmpdir/scmroot/dmg2img'...
$ git fetch origin 30581d716f91758705741b3199dc2b311cb32c95:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dmg2img
 * [new ref]         30581d716f91758705741b3199dc2b311cb32c95 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 30581d7 convert license to SPDX