$ git clone -n https://src.fedoraproject.org/rpms/flare-engine.git /var/lib/mock/f45-build-9024-397/root/chroot_tmpdir/scmroot/flare-engine
Cloning into '/var/lib/mock/f45-build-9024-397/root/chroot_tmpdir/scmroot/flare-engine'...
$ git fetch origin 0659e3ec7ca43748bf2662572eff659b4c5ec2e2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flare-engine
 * [new ref]         0659e3ec7ca43748bf2662572eff659b4c5ec2e2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0659e3e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild