$ git clone -n https://src.fedoraproject.org/rpms/rust-gstreamer-video-sys.git /var/lib/mock/f40-build-2325271-58805/root/chroot_tmpdir/scmroot/rust-gstreamer-video-sys
Cloning into '/var/lib/mock/f40-build-2325271-58805/root/chroot_tmpdir/scmroot/rust-gstreamer-video-sys'...
$ git fetch origin 796bdb806c9cc3b46c1f94ec45dc439b87399822:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gstreamer-video-sys
 * [new ref]         796bdb806c9cc3b46c1f94ec45dc439b87399822 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 796bdb8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild