$ git clone -n https://src.fedoraproject.org/rpms/rust-selectors.git /var/lib/mock/f40-build-2073968-49367/root/chroot_tmpdir/scmroot/rust-selectors
Cloning into '/var/lib/mock/f40-build-2073968-49367/root/chroot_tmpdir/scmroot/rust-selectors'...
$ git fetch origin bcd2dcd1536ee9ec8e8c0b6e1559a8cdb6610dc2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-selectors
 * [new ref]         bcd2dcd1536ee9ec8e8c0b6e1559a8cdb6610dc2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bcd2dcd Update to 0.25.0