$ git clone -n https://src.fedoraproject.org/rpms/hscolour.git /var/lib/mock/f40-build-2095610-50389/root/chroot_tmpdir/scmroot/hscolour
Cloning into '/var/lib/mock/f40-build-2095610-50389/root/chroot_tmpdir/scmroot/hscolour'...
$ git fetch origin 6d3b3f5440ff7ef702fcc526dc9b393029dda8ff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hscolour
 * [new ref]         6d3b3f5440ff7ef702fcc526dc9b393029dda8ff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d3b3f5 bump release