Fix background paint header clock in channellist

src/gui/channellist.cpp

@@ -2155,6 +2155,12 @@ void CChannelList::paintHead()
 	CComponentsHeader header(x, y, full_width, theight, name /*no header icon*/);
 	header.paint(CC_SAVE_SCREEN_NO);
 
+	if (headerClock != NULL) {
+		headerClock->clearSavedScreen();
+		delete headerClock;
+		headerClock = NULL;
+	}
+
 	if (g_Sectionsd->getIsTimeSet()) {
 		if (headerClock == NULL) {
 			headerClock = new CComponentsFrmClock(0, 0, 0, 0, "%H:%M", true);

src/gui/components/cc_frm_clock.cpp

@@ -305,7 +305,7 @@ bool CComponentsFrmClock::stopThread()
 			return false;
 		}
 	}
-	kill();
+	hide();
 	cl_thread = 0;
 	return true;
 }