$ git clone -n https://src.fedoraproject.org/rpms/petsc.git /var/lib/mock/f41-build-836216-158800/root/chroot_tmpdir/scmroot/petsc
Cloning into '/var/lib/mock/f41-build-836216-158800/root/chroot_tmpdir/scmroot/petsc'...
$ git fetch origin f863cc10a0d7aca4f1072c6fc879df6b03353dad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/petsc
 * [new ref]         f863cc10a0d7aca4f1072c6fc879df6b03353dad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f863cc1 Fix configure script for python3.13