[PATCH] data_smart: Ensure OVERRIDES dependencies account for contains()

[Richard Purdie <richard.purdie@linuxfoundation.org>]

The dependencies of OVERRIDES were not including DEFAULTTUNE in OE-Core.
This is pulled in by a bb.utils.contains() reference which the override
dependency tracking code wasn't accounting for.

This patch ensures we do track contains references too.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/bitbake/lib/bb/data_smart.py b/bitbake/lib/bb/data_smart.py
index 09a2adb..ce1f50f 100644
--- a/bitbake/lib/bb/data_smart.py
+++ b/bitbake/lib/bb/data_smart.py
@@ -540,12 +540,16 @@ class DataSmart(MutableMapping):
             self._setvar_update_overridevars(var, value)
 
     def _setvar_update_overridevars(self, var, value):
-        new = self.expandWithRefs(value, var).references
+        vardata = self.expandWithRefs(value, var)
+        new = vardata.references
+        new.update(vardata.contains.keys())
         while not new.issubset(self.overridevars):
             nextnew = set()
             self.overridevars.update(new)
             for i in new:
-                nextnew.update(self.expandWithRefs(self.getVar(i, True), i).references)
+                vardata = self.expandWithRefs(self.getVar(i, True), i)
+                nextnew.update(vardata.references)
+                nextnew.update(vardata.contains.keys())
             new = nextnew
         self.internal_finalize(True)