Timeline: Don't die when a punch recording is started with no range defined.

timeline/src/Engine/Timeline.C

@@ -40,7 +40,7 @@ Timeline::record ( void )
 
     nframes_t frame = transport->frame;
 
-    if ( transport->punch_enabled() && frame < range_start() )
+    if ( transport->punch_enabled() && range_start() != range_end() && frame < range_start() )
         frame = range_start();
 
     DMESSAGE( "Going to record starting at frame %lu", (unsigned long)frame );
@@ -64,7 +64,7 @@ Timeline::stop ( void )
 {
     nframes_t frame = transport->frame;
 
-    if ( transport->punch_enabled() && frame > range_end() )
+    if ( transport->punch_enabled() && range_start() != range_end() && frame > range_end() )
         frame = range_end();
 
     for ( int i = tracks->children(); i-- ; )

timeline/src/TLE.fl

@@ -856,7 +856,7 @@ if ( engine && engine->zombified() && ! zombie )
 
 solo_blinker->value( Track::soloing() );
 
-if ( transport->punch_enabled() )
+if ( transport->punch_enabled() && timeline->range_start() != timeline->range_end() )
         rec_blinker->value( transport->rolling &&
                             transport->rec_enabled() &&
                             transport->frame >= timeline->range_start() &&

timeline/src/Timeline.C

@@ -1068,8 +1068,7 @@ Timeline::redraw_playhead ( void )
 
     if ( transport->rolling &&
          transport->rec_enabled() &&
-         transport->punch_enabled() &&
-         transport->frame > range_end() )
+         ( ( transport->punch_enabled() && range_start() != range_end() ) && transport->frame > range_end() ) )
         transport->stop();
 
     int playhead_x = ts_to_x( transport->frame );