$ git clone -n https://src.fedoraproject.org/rpms/rshim.git /var/lib/mock/f39-build-1442018-32427/root/chroot_tmpdir/scmroot/rshim
Cloning into '/var/lib/mock/f39-build-1442018-32427/root/chroot_tmpdir/scmroot/rshim'...
$ git fetch origin f09a19d9f86e83740eb78fe210f92ecaa392cc8d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rshim
 * [new ref]         f09a19d9f86e83740eb78fe210f92ecaa392cc8d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f09a19d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild