Sequencer: Don't skip first note of repeating patterns in Phrase mode.

sequencer/src/pattern.C

@@ -320,7 +320,6 @@ pattern::trigger ( tick_t start, tick_t end )
 
     _start = start;
     _end   = end;
-    _index = 0;
 }
 
 /* trigger forever */

sequencer/src/phrase.C

@@ -226,8 +226,7 @@ try_again:
             {
                 pattern *p = pattern::pattern_by_number( 1 + note_to_y( e->note() ) );
             
-                if ( ! p->playing() )
-                    p->trigger( ts, tse );
+                p->trigger( ts, tse );
                 
                 p->play( start, end );
             }