Bug IPAL19475 - QT4 porting: exception on display of geometry creating a mesh

diff --git a/src/SUIT/SUIT_Study.cxx b/src/SUIT/SUIT_Study.cxx
index cc0531a807439957efe6b0ead218a8b06384b9f6..fec0b6a4f7079d312fe12443dd6f6033be28e481 100755 (executable)
--- a/src/SUIT/SUIT_Study.cxx
+++ b/src/SUIT/SUIT_Study.cxx
@@ -246,8 +246,9 @@ SUIT_Operation* SUIT_Study::blockingOperation( SUIT_Operation* theOp ) const
     return 0;
 
   Operations tmpOps( myOperations );
-  for ( Operations::const_iterator it = tmpOps.end(); it != tmpOps.begin(); --it )
+  for ( Operations::const_iterator it = tmpOps.end(); it != tmpOps.begin(); )
   {
+    it--;
     SUIT_Operation* anOp = *it;
     if ( anOp != 0 && anOp!= theOp && !anOp->isValid( theOp ) )
       return anOp;