6195179b836111bd4a82ae5f5c73b2f8d36e7abb
hiram
  Mon Mar 23 17:58:36 2026 -0700
more simple vis restoration for gcOnFly no need for all the rigamerol refs #35958

diff --git src/hg/hgTracks/hgTracks.c src/hg/hgTracks/hgTracks.c
index 4af0cf51c31..e1395232b41 100644
--- src/hg/hgTracks/hgTracks.c
+++ src/hg/hgTracks/hgTracks.c
@@ -7435,49 +7435,40 @@
 // load the track list and check to see if we need to rewrite the cart
 int cartVersionFromTrackDb = loadFromTrackDb(&trackList);
 int cartVersionFromCart = cartGetVersion(cart);
 if (cartVersionFromTrackDb > cartVersionFromCart)
     cartRewrite(cart, cartVersionFromTrackDb, cartVersionFromCart);
 
 if (measureTiming)
     measureTime("Time after trackDbLoad ");
 if (pcrResultParseCart(database, cart, NULL, NULL, NULL))
     slSafeAddHead(&trackList, pcrResultTg());
 if (userSeqString != NULL)
     slSafeAddHead(&trackList, userPslTg());
 slSafeAddHead(&trackList, oligoMatchTg());
 if (cfgOptionBooleanDefault("gcOnTheFly", FALSE))
     {
-    /* If a saved session is active but has no setting for the gcOnFly track,
-     * the session predates this track -- do not inject it. */
-    boolean sessionActive = isNotEmpty(cartOptionalString(cart, hgsOtherUserSessionName));
-    boolean gcOnFlyInSession = (cartOptionalString(cart, GC_ON_FLY_TRACK_NAME) != NULL);
-    boolean gcOnFlyAllowed = !sessionActive || gcOnFlyInSession;
-    if (gcOnFlyAllowed)
-	{
-	char *sessionVis = gcOnFlyInSession
-	    ? cartUsualString(cart, GC_ON_FLY_TRACK_NAME, "dense") : NULL;
+    char *vis = cartUsualString(cart, GC_ON_FLY_TRACK_NAME, "hide");
     if (cfgOptionBooleanDefault("gcOnTheFlyCoExist", FALSE))
 	{
-	    slSafeAddHead(&trackList, gc5BaseOnTheFlyTg(cart, sessionVis));
+	slSafeAddHead(&trackList, gc5BaseOnTheFlyTg(cart, vis));
 	}
     else
 	{
 	if (rFindTrackWithTable("gc5Base", trackList) == NULL &&
 	    rFindTrackWithTable("gc5BaseBw", trackList) == NULL)
-		slSafeAddHead(&trackList, gc5BaseOnTheFlyTg(cart, sessionVis));
-	    }
+	    slSafeAddHead(&trackList, gc5BaseOnTheFlyTg(cart, vis));
 	}
     }
 
 if (restrictionEnzymesOk())
     {
     slSafeAddHead(&trackList, cuttersTg());
     }
 if (wikiTrackEnabled(database, NULL))
     {
     addWikiTrack(&trackList);
     struct sqlConnection *conn = wikiConnect();
     if (sqlTableExists(conn, "variome"))
         addVariomeWikiTrack(&trackList);
     wikiDisconnect(&conn);
     }