$ git clone -n https://src.fedoraproject.org/rpms/flute.git /var/lib/mock/f45-build-9112-399/root/chroot_tmpdir/scmroot/flute
Cloning into '/var/lib/mock/f45-build-9112-399/root/chroot_tmpdir/scmroot/flute'...
$ git fetch origin 3152d29e685e1115dd7ee22776cbe4329d030808:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flute
 * [new ref]         3152d29e685e1115dd7ee22776cbe4329d030808 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3152d29 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild