$ git clone -n https://src.fedoraproject.org/rpms/lv2-vocoder-plugins.git /var/lib/mock/f45-build-17774-504/root/chroot_tmpdir/scmroot/lv2-vocoder-plugins
Cloning into '/var/lib/mock/f45-build-17774-504/root/chroot_tmpdir/scmroot/lv2-vocoder-plugins'...
$ git fetch origin 3f0b9a07ed7718c271a0c9e7dbd48f144ac8eebd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lv2-vocoder-plugins
 * [new ref]         3f0b9a07ed7718c271a0c9e7dbd48f144ac8eebd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f0b9a0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild