$ git clone -n https://src.fedoraproject.org/rpms/rust-bit-set0.5.git /var/lib/mock/f42-build-3252990-41225/root/chroot_tmpdir/scmroot/rust-bit-set0.5
Cloning into '/var/lib/mock/f42-build-3252990-41225/root/chroot_tmpdir/scmroot/rust-bit-set0.5'...
$ git fetch origin 24b4b02494c24aeeeb1c3c681e90bd2227d5cd0d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-bit-set0.5
 * [new ref]         24b4b02494c24aeeeb1c3c681e90bd2227d5cd0d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 24b4b02 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild