$ git clone -n https://src.fedoraproject.org/rpms/rust-attribute-derive-macro.git /var/lib/mock/f45-build-40306-770/root/chroot_tmpdir/scmroot/rust-attribute-derive-macro
Cloning into '/var/lib/mock/f45-build-40306-770/root/chroot_tmpdir/scmroot/rust-attribute-derive-macro'...
$ git fetch origin 732c413223c37fbfbfa1af968bf0fe65307378e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-attribute-derive-macro
 * [new ref]         732c413223c37fbfbfa1af968bf0fe65307378e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 732c413 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild