Fixed issue #82

Author: SidhNor

src/collapse/collapse.js

@@ -22,6 +22,20 @@ angular.module('ui.bootstrap.collapse',['ui.bootstrap.transition'])
 
       var isCollapsed;
 
+      var initialHeightVal = element[0].scrollHeight;
+      var heightProperlyInitialized = false;
+
+      scope.$watch(function (){ return initialHeightVal != element[0].scrollHeight}, function (value) {
+        //The listener is called when angular bindings are being resolved
+        //When we have a change of height after binding we are setting again the correct height if the group is opened
+        if (value && !heightProperlyInitialized) {
+          heightProperlyInitialized = true;
+          if (!isCollapsed) {
+            doTransition({ height : element[0].scrollHeight + 'px' });
+          }
+        }
+      });
+
       scope.$watch(attrs.collapse, function(value) {
         if (value) {
           collapse();