$ git clone -n https://src.fedoraproject.org/rpms/plantuml.git /var/lib/mock/f45-build-28714-632/root/chroot_tmpdir/scmroot/plantuml
Cloning into '/var/lib/mock/f45-build-28714-632/root/chroot_tmpdir/scmroot/plantuml'...
$ git fetch origin 65a355bab0621fa0816cea4bf8f5ea099bc69152:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plantuml
 * [new ref]         65a355bab0621fa0816cea4bf8f5ea099bc69152 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 65a355b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild