when loading legacy automation with only one value in, eliminate global automation pattern right after loading data

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1390 0778d3d1-df1d-0410-868b-ea421aaaa00d

src/core/automatable_model.cpp

@@ -144,6 +144,12 @@ void automatableModel::loadSettings( const QDomElement & _this,
 						globalAutomationPattern( this );
 			p->loadSettings( node.toElement() );
 			setValue( p->valueAt( 0 ) );
+			// in older projects we sometimes have odd automations
+			// with just one value in - eliminate if neccessary
+			if( !p->hasAutomation() )
+			{
+				delete p;
+			}
 			return;
 		}
 	}