$ git clone -n https://src.fedoraproject.org/rpms/rubygem-netrc.git /var/lib/mock/f40-build-2034044-47862/root/chroot_tmpdir/scmroot/rubygem-netrc
Cloning into '/var/lib/mock/f40-build-2034044-47862/root/chroot_tmpdir/scmroot/rubygem-netrc'...
$ git fetch origin 77948f2a2427a4bd4761f752714f6d7c648cd7fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-netrc
 * [new ref]         77948f2a2427a4bd4761f752714f6d7c648cd7fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 77948f2 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild