[Commit-gnuradio] [gnuradio] 02/02: grc: fix port type cache for empty types

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jcorgan pushed a commit to branch maint
in repository gnuradio.

commit 8a8bfef084ed7a6ddc506f81690041d3b15a9540
Author: Sebastian Koslowski <address@hidden>
Date:   Thu Nov 6 18:02:10 2014 +0100

    grc: fix port type cache for empty types
---
 grc/python/Port.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/grc/python/Port.py b/grc/python/Port.py
index 68e851f..cfeabf8 100644
--- a/grc/python/Port.py
+++ b/grc/python/Port.py
@@ -133,8 +133,8 @@ class Port(_Port, _GUIPort):
         """
         Handle the port cloning for virtual blocks.
         """
-        _Port.rewrite(self)
         if self.is_type_empty():
+            self._type_evaluated = None
             try: #clone type and vlen
                 source = self.resolve_empty_type()
                 self._type = str(source.get_type())
@@ -142,6 +142,7 @@ class Port(_Port, _GUIPort):
             except: #reset type and vlen
                 self._type = ''
                 self._vlen = ''
+        _Port.rewrite(self)
 
     def resolve_virtual_source(self):
         if self.get_parent().is_virtual_sink(): return 
_get_source_from_virtual_sink_port(self)