regression_tracker: workaround: match node paths programatically

Don't use 'path' as an api search parameter. The use of lists as query
parameters (path is a list) is undefined. Instead, do the filtering in
code.

Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>

src/regression_tracker.py

@@ -107,9 +107,14 @@ def _get_last_matching_node(self, search_params):
  TODO: Move this to core helpers.
 
  """
+ # Workaround: Don't use 'path' as a search parameter (we can't
+ # use lists as query parameter values). Instead, do the
+ # filtering in python code
+ path = search_params.pop('path')
  nodes = self._api.node.find(search_params)
  if not nodes:
  return None
+ nodes = [node for node in nodes if node['path'] == path]
  node = sorted(
  nodes,
  key=lambda node: node['created'],