Reproducible hypothesis test failure in service fetch

[Viicos]

The following test:

open-forms/src/openforms/submissions/tests/form_logic/test_fetching_form_variable_values_from_services.py

Lines 121 to 128 in 50ff077

	@given(data_mapping_values())
	@example("../otherendpoint")
	@example("./../.")
	@example("foo/ +.")
	def test_it_can_construct_simple_path_parameters_from_any_input(self, field_value):
	assume(field_value != ".") # request_mock eats the single dot :pacman:
	# https://swagger.io/docs/specification/describing-parameters/#path-parameters
	context = {"late": {"seconds": field_value}}

fails with the reproducible failure @reproduce_failure('6.84.3', b'AAABACwBACwA') (field_value = '..')