JAL-3551 - wrap pair_fit with undo_disable and undo_enable

diff --git a/src/jalview/ext/pymol/PymolCommands.java b/src/jalview/ext/pymol/PymolCommands.java
index ed64c00..b69d3e3 100644 (file)
--- a/src/jalview/ext/pymol/PymolCommands.java
+++ b/src/jalview/ext/pymol/PymolCommands.java
@@ -114,9 +114,12 @@ public class PymolCommands extends StructureCommandsBase
     String refAtomsAlphaOnly = "("+getAtomSpec(refAtoms, specType)+" and (altloc '' or altloc 'a'))";
     String atomSpec2AlphaOnly = "("+getAtomSpec(atomSpec, specType)+" and (altloc '' or altloc 'a'))";
     // pair_fit mobile -> reference
+    // crashes when undo is enabled on 2.5.2 (incentive)
+    commands.add(new StructureCommand("undo_disable"));
     commands.add(new StructureCommand("pair_fit", 
             atomSpec2AlphaOnly, refAtomsAlphaOnly));
-
+    commands.add(new StructureCommand("undo_enable"));
+    
     /*
      * and show superposed residues as cartoon
      */