$ git clone -n https://src.fedoraproject.org/rpms/rust-gh-emoji.git /var/lib/mock/f40-build-2641278-66427/root/chroot_tmpdir/scmroot/rust-gh-emoji
Cloning into '/var/lib/mock/f40-build-2641278-66427/root/chroot_tmpdir/scmroot/rust-gh-emoji'...
$ git fetch origin e60f1cbbe56768dcc236d992a1017652516fd41e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gh-emoji
 * [new ref]         e60f1cbbe56768dcc236d992a1017652516fd41e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e60f1cb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild