added tests for sequence with a count of 1

now checks for stride being 0 so it does not skip counts of 1 but still skips counts of 0
fixes #11422

lib/ansible/modules/core

@@ -1 +1 @@
-Subproject commit 30377b7103553a6cf0f6fbd4f8cdf119dc0212a2
+Subproject commit ea913bada2e4307c254c3277cd4b15304cacb9bb

lib/ansible/runner/lookup_plugins/sequence.py

@@ -203,8 +203,7 @@ class LookupModule(object):
                     )
 
                 self.sanity_check()
-
-                if self.start != self.end:
+                if self.stride != 0:
                     results.extend(self.generate_sequence())
             except AnsibleError:
                 raise

test/integration/roles/test_iterators/tasks/main.yml

@@ -81,10 +81,16 @@
   with_sequence: count=0
   register: count_of_zero
 
+- name: test with_sequence count 1
+  set_fact: "{{ 'x' + item }}={{ item }}"
+  with_sequence: count=1
+  register: count_of_one
+
 - assert:
     that:
         - count_of_zero | skipped
         - not count_of_zero | failed
+        - not count_of_one | skipped
 
 # WITH_RANDOM_CHOICE