$ git clone -n https://src.fedoraproject.org/rpms/rust-is_debug.git /var/lib/mock/f39-build-1521852-35863/root/chroot_tmpdir/scmroot/rust-is_debug
Cloning into '/var/lib/mock/f39-build-1521852-35863/root/chroot_tmpdir/scmroot/rust-is_debug'...
$ git fetch origin 08175e394ada85431341ae8aefa729746165d761:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-is_debug
 * [new ref]         08175e394ada85431341ae8aefa729746165d761 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 08175e3 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild