$ git clone -n https://src.fedoraproject.org/rpms/rust-fancy-regex0.7.git /var/lib/mock/f40-build-2324924-58794/root/chroot_tmpdir/scmroot/rust-fancy-regex0.7
Cloning into '/var/lib/mock/f40-build-2324924-58794/root/chroot_tmpdir/scmroot/rust-fancy-regex0.7'...
$ git fetch origin 187c435476d1e556a940d8b66b900caa5b3b2cf7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-fancy-regex0.7
 * [new ref]         187c435476d1e556a940d8b66b900caa5b3b2cf7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 187c435 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild