git: fix target_repo handling
git: fix target_repo handling

The query to handle target_repo was completely broken and it also did not take
into account that JSONField does not support __startswith.  Fix it.

Signed-off-by: Paolo Bonzini <69d3ebcf5ee4e7f05a50dc23cd96655b730804b4@redhat.com>

patchew-project/patchew,patchew-project/patchew,patchew-project/patchew,patchew-project/patchew