fix removal of LOB when rolling back

on table containing more than one LOB column

h2/src/docsrc/html/changelog.html

@@ -21,6 +21,8 @@ Change Log
 
 <h2>Next Version (unreleased)</h2>
 <ul>
+<li>Fix removal of LOB when rolling back transaction on a table containing more than one LOB column.
+</li>
 <li>Issue #654: List ENUM type values in INFORMATION_SCHEMA.COLUMNS
 </li>
 <li>Issue #650: Simple nested SELECT causes error for table with TIMESTAMP WITH TIMEZONE column 

h2/src/main/org/h2/engine/Session.java

@@ -1312,8 +1312,8 @@ public class Session extends SessionWithState {
         }
         if (removeLobMap == null) {
             removeLobMap = New.hashMap();
-            removeLobMap.put(v.toString(), v);
         }
+        removeLobMap.put(v.toString(), v);
     }
 
     /**