diff --git a/lib/ansible/modules/core b/lib/ansible/modules/core
index 9fe5c2af2d..63e81cfc2e 160000
--- a/lib/ansible/modules/core
+++ b/lib/ansible/modules/core
@@ -1 +1 @@
-Subproject commit 9fe5c2af2dcfb125398475e4ed0b740e71d70709
+Subproject commit 63e81cfc2e0c3c07245342cd41a0ba147eac55be
diff --git a/test/integration/roles/test_git/tasks/main.yml b/test/integration/roles/test_git/tasks/main.yml
index 93774afb46..09e42cbcd8 100644
--- a/test/integration/roles/test_git/tasks/main.yml
+++ b/test/integration/roles/test_git/tasks/main.yml
@@ -22,6 +22,11 @@
     repo_format1: 'https://github.com/jimi-c/test_role'
     repo_format2: 'git@github.com:jimi-c/test_role.git'
     repo_format3: 'ssh://git@github.com/jimi-c/test_role.git'
+    repo_submodules: 'https://github.com/abadger/test_submodules.git'
+    repo_submodules_newer: 'https://github.com/abadger/test_submodules_newer.git'
+    repo_submodule1: 'https://github.com/abadger/test_submodules_subm1.git'
+    repo_submodule1_newer: 'https://github.com/abadger/test_submodules_subm1_newer.git'
+    repo_submodule2: 'https://github.com/abadger/test_submodules_subm2.git'
     known_host_files:
       - "{{ lookup('env','HOME') }}/.ssh/known_hosts"
       - '/etc/ssh/ssh_known_hosts'
@@ -147,3 +152,141 @@
 - assert:
     that:
       - 'git_result.changed'
+
+#
+# Submodule tests
+#
+
+# Repository A with submodules defined  (repo_submodules)
+#   .gitmodules file points to Repository I
+# Repository B forked from A that has newer commits (repo_submodules_newer)
+#   .gitmodules file points to Repository II instead of I
+#   .gitmodules file also points to Repository III
+# Repository I for submodule1 (repo_submodule1)
+#   Has 1 file checked in
+# Repository II forked from I that has newer commits (repo_submodule1_newer)
+#   Has 2 files checked in
+# Repository III for a second submodule (repo_submodule2)
+#   Has 1 file checked in
+
+- name: clear checkout_dir
+  file: state=absent path={{ checkout_dir }}
+
+- name: Test that clone without recursive does not retrieve submodules
+  git:
+    repo: '{{ repo_submodules }}'
+    dest: '{{ checkout_dir }}'
+    recursive: no
+
+- command: 'ls -1a {{ checkout_dir }}/submodule1'
+  register: submodule1
+
+- assert:
+    that: '{{ submodule1.stdout_lines|length }} == 2'
+
+- name: clear checkout_dir
+  file: state=absent path={{ checkout_dir }}
+
+
+
+- name: Test that clone with recursive retrieves submodules
+  git:
+    repo: '{{ repo_submodules }}'
+    dest: '{{ checkout_dir }}'
+    recursive: yes
+
+- command: 'ls -1a {{ checkout_dir }}/submodule1'
+  register: submodule1
+
+- assert:
+    that: '{{ submodule1.stdout_lines|length }} == 4'
+
+- name: Copy the checkout so we can run several different tests on it
+  command: 'cp -pr {{ checkout_dir }} {{ checkout_dir }}.bak'
+
+
+
+- name: Check that modules will be updated if main repo is not
+  command: git config --replace-all remote.origin.url {{ repo_submodule1_newer }}
+  args:
+    chdir: "{{ checkout_dir }}/submodule1"
+
+- git:
+    repo: '{{ repo_submodules }}'
+    dest: '{{ checkout_dir }}'
+    update: yes
+    recursive: yes
+    track_submodules: yes
+
+- command: 'ls -1a {{ checkout_dir }}/submodule1'
+  register: submodule1
+
+- debug: var=submodule1
+- assert:
+    that: '{{ submodule1.stdout_lines|length }} == 5'
+  ignore_errors: true
+
+
+
+- name: Restore checkout to prior state
+  file: state=absent path={{ checkout_dir }}
+- command: 'cp -pr {{ checkout_dir }}.bak {{ checkout_dir }}'
+
+- name: Test that update without recursive does not change submodules
+  command: 'git config --replace-all remote.origin.url {{ repo_submodules_newer }}'
+  args:
+    chdir: '{{ checkout_dir }}'
+
+- git:
+    repo: '{{ repo_submodules_newer }}'
+    dest: '{{ checkout_dir }}'
+    recursive: no
+    update: yes
+    track_submodules: yes
+
+- command: 'ls -1a {{ checkout_dir }}/submodule1'
+  register: submodule1
+
+- stat:
+    path: '{{ checkout_dir }}/submodule2'
+  register: submodule2
+
+- command: 'ls -1a {{ checkout_dir }}/submodule2'
+  register: submodule2
+
+- assert:
+    that: '{{ submodule1.stdout_lines|length }} == 4'
+- assert:
+    that: '{{ submodule2.stdout_lines|length }} == 2'
+
+
+
+- name: Restore checkout to prior state
+  file: state=absent path={{ checkout_dir }}
+- command: 'cp -pr {{ checkout_dir }}.bak {{ checkout_dir }}'
+
+- name: Test that update with recursive updated existing submodules
+  command: 'git config --replace-all remote.origin.url {{ repo_submodules_newer }}'
+  args:
+    chdir: '{{ checkout_dir }}'
+
+- git:
+    repo: '{{ repo_submodules_newer }}'
+    dest: '{{ checkout_dir }}'
+    update: yes
+    recursive: yes
+    track_submodules: yes
+
+- command: 'ls -1a {{ checkout_dir }}/submodule1'
+  register: submodule1
+
+- assert:
+    that: '{{ submodule1.stdout_lines|length }} == 5'
+
+
+- name: Test that update with recursive found new submodules
+  command: 'ls -1a {{ checkout_dir }}/submodule2'
+  register: submodule2
+
+- assert:
+    that: '{{ submodule2.stdout_lines|length }} == 4'