$ git clone -n https://src.fedoraproject.org/rpms/fonts-rpm-macros.git /var/lib/mock/f40-build-1996681-44043/root/chroot_tmpdir/scmroot/fonts-rpm-macros
Cloning into '/var/lib/mock/f40-build-1996681-44043/root/chroot_tmpdir/scmroot/fonts-rpm-macros'...
$ git fetch origin 2b5dbfbc2be526babdadd6223c18b46adde787ed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fonts-rpm-macros
 * [new ref]         2b5dbfbc2be526babdadd6223c18b46adde787ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b5dbfb Add explicit dependency on forge-srpm-macros