$ git clone -n https://src.fedoraproject.org/rpms/python-mimerender.git /var/lib/mock/f39-build-1428145-31646/root/chroot_tmpdir/scmroot/python-mimerender
Cloning into '/var/lib/mock/f39-build-1428145-31646/root/chroot_tmpdir/scmroot/python-mimerender'...
$ git fetch origin 60e672a38e881382621b24e2ea364d7a93eab38e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mimerender
 * [new ref]         60e672a38e881382621b24e2ea364d7a93eab38e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 60e672a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild