Bugfix, studio report by Pablo Venomgfx

- insert key crashed when object ipo was in action, but action got unlinked
  from object

1 files changed, 6 insertions, 4 deletions

diff --git a/source/blender/src/keyframing.c b/source/blender/src/keyframing.c
index c5777b9c2a6..e61d8140183 100644
--- a/source/blender/src/keyframing.c
+++ b/source/blender/src/keyframing.c
@@ -1347,10 +1347,12 @@ static void commonkey_context_getv3d (ListBase *sources, bKeyingContext **ksc)
 						if (achan && achan->ipo)
 							cks->ipo= achan->ipo;
 					}
-					
-					/* deselect all ipo-curves */
-					for (icu= cks->ipo->curve.first; icu; icu= icu->next) {
-						icu->flag &= ~IPO_SELECT;
+					/* cks->ipo can be NULL while editing */
+					if(cks->ipo) {
+						/* deselect all ipo-curves */
+						for (icu= cks->ipo->curve.first; icu; icu= icu->next) {
+							icu->flag &= ~IPO_SELECT;
+						}
 					}
 				}
 			}