reset mute-model in fxMixer::clear()

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1239 0778d3d1-df1d-0410-868b-ea421aaaa00d

ChangeLog

@@ -1,5 +1,8 @@
 2008-06-30	Tobias Doerffel	<tobydox/at/users/dot/sourceforge/dot/net>
 
+	* src/core/fx_mixer.cpp:
+	reset mute-model in fxMixer::clear()
+
 	* include/track.h:
 	* src/core/track.cpp:
 	- removed obsolete static members

src/core/fx_mixer.cpp

@@ -203,6 +203,7 @@ void fxMixer::clear()
 	{
 		m_fxChannels[i]->m_fxChain.clear();
 		m_fxChannels[i]->m_volumeModel.setValue( 1.0f );
+		m_fxChannels[i]->m_muteModel.setValue( FALSE );
 		m_fxChannels[i]->m_name = ( i == 0 ) ?
 				tr( "Master" ) : tr( "FX %1" ).arg( i );
 		m_fxChannels[i]->m_volumeModel.setDisplayName(