$ git clone -n https://src.fedoraproject.org/rpms/kddockwidgets.git /var/lib/mock/f40-build-1292893-23380/root/chroot_tmpdir/scmroot/kddockwidgets
Cloning into '/var/lib/mock/f40-build-1292893-23380/root/chroot_tmpdir/scmroot/kddockwidgets'...
$ git fetch origin a7cb2ca87ca9ff0c9a0095d61a956171ea10d1f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kddockwidgets
 * [new ref]         a7cb2ca87ca9ff0c9a0095d61a956171ea10d1f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7cb2ca Rebuild (qt5)