$ git clone -n https://src.fedoraproject.org/rpms/rust-gstreamer-sys.git /var/lib/mock/f40-build-2641552-66431/root/chroot_tmpdir/scmroot/rust-gstreamer-sys
Cloning into '/var/lib/mock/f40-build-2641552-66431/root/chroot_tmpdir/scmroot/rust-gstreamer-sys'...
$ git fetch origin 57b2f9e2ace3b6fda6502a91cdaed5e278415b9f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gstreamer-sys
 * [new ref]         57b2f9e2ace3b6fda6502a91cdaed5e278415b9f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 57b2f9e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild