[chronojump] Fixed potential crash on foreach in RunPhaseTimeList

[Xavier de Blas <xaviblas src gnome org>]

commit 8cf8b9c7e8aff270a08907ef028503525db5fdfc
Author: Xavier de Blas <xaviblas gmail com>
Date:   Tue Apr 3 15:14:09 2018 +0200

    Fixed potential crash on foreach in RunPhaseTimeList

 src/execute/runObjects.cs |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/src/execute/runObjects.cs b/src/execute/runObjects.cs
index a30a017..ad92888 100644
--- a/src/execute/runObjects.cs
+++ b/src/execute/runObjects.cs
@@ -323,7 +323,12 @@ public class RunPhaseTimeList
        public override string ToString()
        {
                string str = "";
-               foreach(PhaseTime pt in listPhaseTime)
+
+               //This is problematic (Collection was modified; enumeration operation may not execute) if 
other thread is changing it:
+               //foreach(PhaseTime pt in listPhaseTime)
+               //solution:
+               List<PhaseTime> listPhaseTimeShallowCloned = new List<PhaseTime>(listPhaseTime);
+               foreach(PhaseTime pt in listPhaseTimeShallowCloned)
                        str += pt.ToString();
 
                return str;
@@ -334,7 +339,12 @@ public class RunPhaseTimeList
                List<string> list_in = new List<string>();
                int currentMS = 0;
                int startInMS = -1;
-               foreach(PhaseTime pt in listPhaseTime)
+
+               //This is problematic (Collection was modified; enumeration operation may not execute) if 
other thread is changing it:
+               //foreach(PhaseTime pt in listPhaseTime)
+               //solution:
+               List<PhaseTime> listPhaseTimeShallowCloned = new List<PhaseTime>(listPhaseTime);
+               foreach(PhaseTime pt in listPhaseTimeShallowCloned)
                {
                        if(pt.IsContact)
                                startInMS = currentMS;