Merged revision(s) 22738 from trunk/OpenMPT:

[Fix] Pattern tab: Potential crash in continuous scroll mode if the current order cannot be retrieved (e.g. empty order list) (https://bugs.openmpt.org/view.php?id=1854).
........


git-svn-id: https://source.openmpt.org/svn/openmpt/branches/OpenMPT-1.31@22739 56274372-70c3-4bfc-bfc3-4c3a0b034d27

mptrack/View_pat.cpp

@@ -279,7 +279,7 @@ ROWINDEX CViewPattern::SetCurrentRow(ROWINDEX row, WrapMode wrapMode, bool updat
 				PATTERNINDEX curPattern = m_nPattern;
 				ORDERINDEX curOrder = GetCurrentOrder();
 				// If current order and pattern are inconsistent, just jump to start of current pattern
-				if(curPattern != order[curOrder])
+				if(curOrder >= order.size() || curPattern != order[curOrder])
 					return SetCurrentRow(0);
 
 				do
@@ -314,7 +314,7 @@ ROWINDEX CViewPattern::SetCurrentRow(ROWINDEX row, WrapMode wrapMode, bool updat
 				PATTERNINDEX curPattern = m_nPattern;
 				ORDERINDEX curOrder = GetCurrentOrder();
 				// If current order and pattern are inconsistent, just jump to end of current pattern
-				if(curPattern != order[curOrder])
+				if(curOrder >= order.size() || curPattern != order[curOrder])
 					return SetCurrentRow(numRows - 1);
 
 				do