$ git clone -n https://src.fedoraproject.org/rpms/rust-gix.git /var/lib/mock/f40-build-2373535-60409/root/chroot_tmpdir/scmroot/rust-gix
Cloning into '/var/lib/mock/f40-build-2373535-60409/root/chroot_tmpdir/scmroot/rust-gix'...
$ git fetch origin f4f966c735624e8f7d3f669efa1eb514936844ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix
 * [new ref]         f4f966c735624e8f7d3f669efa1eb514936844ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f4f966c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild