fix move file fix

Author: parg

core/src/com/biglybt/core/disk/impl/DiskManagerUtil.java

@@ -2345,6 +2345,8 @@ public DiskAccessController getDiskAccessController(){
 							ready = move_tasks.size() == 1;
 						}
 
+						boolean deferred = false;
+						
 						try{
 							if ( has_scheduler ){
 
@@ -2359,6 +2361,8 @@ public DiskAccessController getDiskAccessController(){
 
 										// come back later
 
+									deferred = true;
+									
 									return( false );
 								}
 
@@ -2408,6 +2412,8 @@ public DiskAccessController getDiskAccessController(){
 
 											// come back later
 
+										deferred = true;
+										
 										return( false );
 									}
 								}
@@ -2421,9 +2427,12 @@ public DiskAccessController getDiskAccessController(){
 
 						}finally{
 
-							synchronized( move_tasks ){
-
-								move_tasks.remove( this );
+							if ( !deferred ){
+								
+								synchronized( move_tasks ){
+	
+									move_tasks.remove( this );
+								}
 							}
 						}
 					}