[Bf-blender-cvs] [7a7b242] blender-v2.77-release: Fix T47862: VSE hard cut fails

[Campbell Barton]

Commit: 7a7b242007ce64de3b4751ac05ab49e4220f3984
Author: Campbell Barton
Date:   Mon Mar 21 19:22:39 2016 +1100
Branches: blender-v2.77-release
https://developer.blender.org/rB7a7b242007ce64de3b4751ac05ab49e4220f3984

Fix T47862: VSE hard cut fails

Regression caused by changing how video length is calculated,
however similar problems could be caused by strip length changing on-disk.

===================================================================

M	source/blender/editors/space_sequencer/sequencer_edit.c

===================================================================

diff --git a/source/blender/editors/space_sequencer/sequencer_edit.c b/source/blender/editors/space_sequencer/sequencer_edit.c
index c0a95225f..df3e508 100644
--- a/source/blender/editors/space_sequencer/sequencer_edit.c
+++ b/source/blender/editors/space_sequencer/sequencer_edit.c
@@ -685,6 +685,14 @@ static Sequence *cut_seq_hard(Scene *scene, Sequence *seq, int cutframe)
 	/* First Strip! */
 	/* strips with extended stillfames before */
 	
+	/* Precaution, needed because the length saved on-disk may not match the length saved in the blend file,
+	 * or our code may have minor differences reading file length between versions.
+	 * This causes hard-cut to fail, see: T47862 */
+	if (seq->type != SEQ_TYPE_META) {
+		BKE_sequence_reload_new_file(scene, seq, true);
+		BKE_sequence_calc(scene, seq);
+	}
+
 	if ((seq->startstill) && (cutframe < seq->start)) {
 		/* don't do funny things with METAs ... */
 		if (seq->type == SEQ_TYPE_META) {