$ git clone -n https://src.fedoraproject.org/rpms/rust-gtk0.15.git /var/lib/mock/f40-build-2660405-66918/root/chroot_tmpdir/scmroot/rust-gtk0.15
Cloning into '/var/lib/mock/f40-build-2660405-66918/root/chroot_tmpdir/scmroot/rust-gtk0.15'...
$ git fetch origin d3bc2f0cb090343590f3400f23160db3bb47b38a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gtk0.15
 * [new ref]         d3bc2f0cb090343590f3400f23160db3bb47b38a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d3bc2f0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild