$ git clone -n https://src.fedoraproject.org/rpms/python-animatplot.git /var/lib/mock/f39-build-1899297-42822/root/chroot_tmpdir/scmroot/python-animatplot
Cloning into '/var/lib/mock/f39-build-1899297-42822/root/chroot_tmpdir/scmroot/python-animatplot'...
$ git fetch origin d6753f3e743206fd6f9e8af6dbea49ea49e4f70d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-animatplot
 * [new ref]         d6753f3e743206fd6f9e8af6dbea49ea49e4f70d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6753f3 Fix BuildRequires