$ git clone -n https://src.fedoraproject.org/rpms/mawk.git /var/lib/mock/f41-build-side-1-2821082-33198/root/chroot_tmpdir/scmroot/mawk
Cloning into '/var/lib/mock/f41-build-side-1-2821082-33198/root/chroot_tmpdir/scmroot/mawk'...
$ git fetch origin e249015c6636691bd42584aee77834a050b7db28:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mawk
 * [new ref]         e249015c6636691bd42584aee77834a050b7db28 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e249015 convert GPLv2 license to SPDX