$ git clone -n https://src.fedoraproject.org/rpms/rust-gstreamer-pbutils.git /var/lib/mock/f40-build-2513018-61714/root/chroot_tmpdir/scmroot/rust-gstreamer-pbutils
Cloning into '/var/lib/mock/f40-build-2513018-61714/root/chroot_tmpdir/scmroot/rust-gstreamer-pbutils'...
$ git fetch origin 978b4b6136d232d305b858f538601e3ee65ee79c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gstreamer-pbutils
 * [new ref]         978b4b6136d232d305b858f538601e3ee65ee79c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 978b4b6 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild