$ git clone -n https://src.fedoraproject.org/rpms/rust-zbus_macros.git /var/lib/mock/f39-build-1521622-35850/root/chroot_tmpdir/scmroot/rust-zbus_macros
Cloning into '/var/lib/mock/f39-build-1521622-35850/root/chroot_tmpdir/scmroot/rust-zbus_macros'...
$ git fetch origin 6d2c0f07bcfd2e1a86d68083d98c85f68f88de18:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zbus_macros
 * [new ref]         6d2c0f07bcfd2e1a86d68083d98c85f68f88de18 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d2c0f0 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild