fix py3 scope for unique filter errors, enable filters integration tests on rhel8 beta (#48961)

* fix py3 scope for unique filter errors, enable filters integration tests on rhel8 beta

Signed-off-by: Adam Miller <admiller@redhat.com>

* add changelog

Signed-off-by: Adam Miller <admiller@redhat.com>

changelogs/fragments/mathstuff-filter-py3-scope.yaml

@@ -0,0 +1,3 @@
+---
+minor_changes:
+  - "mattstuff filter - fix py3 scope for unique filter errors"

lib/ansible/plugins/filter/mathstuff.py

@@ -62,12 +62,12 @@ def unique(environment, a, case_sensitive=False, attribute=None):
             else:
                 c = list(c)
     except TypeError as e:
+        error = e
         _do_fail(e)
     except Exception as e:
+        error = e
         _do_fail(e)
         display.warning('Falling back to Ansible unique filter as Jinja2 one failed: %s' % to_text(e))
-    finally:
-        error = e
 
     if not HAS_UNIQUE or error:
 

test/integration/targets/filters/aliases

@@ -1,2 +1 @@
 shippable/posix/group2
-skip/rhel8.0