rib: Stop removed namespace from inheriting ancestor route

refs: #2757

Change-Id: I9f9e18109f0d8ee45571d23a6eea7f254302a56f
diff --git a/rib/fib-updater.cpp b/rib/fib-updater.cpp
index 839e5ea..8d581be 100644
--- a/rib/fib-updater.cpp
+++ b/rib/fib-updater.cpp
@@ -612,7 +612,8 @@
   // Need to check if the removed route was blocking an inherited route
   Rib::RouteSet ancestorRoutes = m_rib.getAncestorRoutes(entry);
 
-  if (!entry.hasCapture()) {
+  // If the current entry has capture set or is pending removal, don't add inherited route
+  if (!entry.hasCapture() && entry.getNRoutes() != 0) {
     // If there is an ancestor route which is the same as the erased route, add that route
     // to the current entry
     Rib::RouteSet::iterator it = ancestorRoutes.find(route);