$ git clone -n https://src.fedoraproject.org/rpms/openscad.git /var/lib/mock/f45-build-21096-578/root/chroot_tmpdir/scmroot/openscad
Cloning into '/var/lib/mock/f45-build-21096-578/root/chroot_tmpdir/scmroot/openscad'...
$ git fetch origin 371b87a81f6151ce1bb88320cb5c4376e5fa8c57:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openscad
 * [new ref]         371b87a81f6151ce1bb88320cb5c4376e5fa8c57 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 371b87a Rebuilt for libxml-2.5.4