manifest: Propagate revision attribute through multiple levels of include

Make sure a revision attribute for an include element is propagated
through multiple levels of manifest includes.

Change-Id: If37d65b0cd47da673719976598175d0eb6b7cbbe
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/525341
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Commit-Queue: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Reviewed-by: Gavin Mak <gavinmak@google.com>

tests/test_manifest_xml.py

@@ -422,9 +422,27 @@ class IncludeElementTests(ManifestParseTestCase):
         (self.manifest_dir / "stable.xml").write_text(
             """
 <manifest>
+  <include name="man1.xml" />
+  <include name="man2.xml" revision="stable-branch2" />
   <project name="stable-name1" path="stable-path1" />
   <project name="stable-name2" path="stable-path2" revision="stable-branch2" />
 </manifest>
+"""
+        )
+        (self.manifest_dir / "man1.xml").write_text(
+            """
+<manifest>
+  <project name="man1-name1" />
+  <project name="man1-name2" revision="stable-branch3" />
+</manifest>
+"""
+        )
+        (self.manifest_dir / "man2.xml").write_text(
+            """
+<manifest>
+  <project name="man2-name1" />
+  <project name="man2-name2" revision="stable-branch3" />
+</manifest>
 """
         )
         include_m = manifest_xml.XmlManifest(str(self.repodir), str(root_m))
@@ -441,6 +459,14 @@ class IncludeElementTests(ManifestParseTestCase):
             if proj.name == "stable-name2":
                 # Check stable proj revision can override include node.
                 self.assertEqual("stable-branch2", proj.revisionExpr)
+            if proj.name == "man1-name1":
+                self.assertEqual("stable-branch", proj.revisionExpr)
+            if proj.name == "man1-name2":
+                self.assertEqual("stable-branch3", proj.revisionExpr)
+            if proj.name == "man2-name1":
+                self.assertEqual("stable-branch2", proj.revisionExpr)
+            if proj.name == "man2-name2":
+                self.assertEqual("stable-branch3", proj.revisionExpr)
 
     def test_group_levels(self):
         root_m = self.manifest_dir / "root.xml"