$ git clone -n https://src.fedoraproject.org/rpms/crosswords.git /var/lib/mock/f40-build-752625-116814/root/chroot_tmpdir/scmroot/crosswords
Cloning into '/var/lib/mock/f40-build-752625-116814/root/chroot_tmpdir/scmroot/crosswords'...
$ git fetch origin 0eddf8ff9ef859ffdbdd300382ac5a657b2958e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/crosswords
 * [new ref]         0eddf8ff9ef859ffdbdd300382ac5a657b2958e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0eddf8f Update to 0.3.11; Fixes; RHBZ#2236035