557843ecd649fa8222c713efd23fd9e471653784
max
  Wed Jan 30 09:09:43 2019 -0800
fixing a very obvious logic bug in sameTableOrHandler in hgc which I
made myself and I have trouble believing that this has never been a
problem before. refs #22838

diff --git src/hg/hgc/hgc.c src/hg/hgc/hgc.c
index 34f1b1c..b82e38f 100644
--- src/hg/hgc/hgc.c
+++ src/hg/hgc/hgc.c
@@ -19504,31 +19504,31 @@
     showSAM_T02(gbProtAnn->proteinId);
 
     printPos(seqName, gbProtAnn->chromStart, gbProtAnn->chromEnd, "+", TRUE,
 	     gbProtAnn->name);
     }
 printTrackHtml(tdb);
 
 sqlFreeResult(&sr);
 hFreeConn(&conn);
 }
 
 bool matchTableOrHandler(char *word, struct trackDb *tdb)
 /* return true if word matches either the table name or the trackHandler setting of the tdb struct */
 {
 char* handler = trackDbSetting(tdb, "trackHandler");
-return (sameWord(word, tdb->table) || (handler==NULL || sameWord(word, handler)));
+return (sameWord(word, tdb->table) || (handler!=NULL && sameWord(word, handler)));
 }
 
 void doLinkedFeaturesSeries(char *track, char *clone, struct trackDb *tdb)
 /* Create detail page for linked features series tracks */
 {
 char query[256];
 char title[256];
 struct sqlConnection *conn = hAllocConn(database), *conn1 = hAllocConn(database);
 struct sqlResult *sr = NULL, *sr2 = NULL, *srb = NULL;
 char **row, **row1, **row2, **rowb;
 char *lfLabel = NULL;
 char *table = NULL;
 char *intName = NULL;
 char pslTable[HDB_MAX_TABLE_STRING];
 int start = cartInt(cart, "o");