Index: src/parse.y
==================================================================
--- src/parse.y
+++ src/parse.y
@@ -446,10 +446,11 @@
 
 selectnowith(A) ::= oneselect(X).                      {A = X;}
 %ifndef SQLITE_OMIT_COMPOUND_SELECT
 selectnowith(A) ::= selectnowith(X) multiselect_op(Y) oneselect(Z).  {
   Select *pRhs = Z;
+  Select *pLhs = X;
   if( pRhs && pRhs->pPrior ){
     SrcList *pFrom;
     Token x;
     x.n = 0;
     parserDoubleLinkSelect(pParse, pRhs);
@@ -456,15 +457,16 @@
     pFrom = sqlite3SrcListAppendFromTerm(pParse,0,0,0,&x,pRhs,0,0);
     pRhs = sqlite3SelectNew(pParse,0,pFrom,0,0,0,0,0,0,0);
   }
   if( pRhs ){
     pRhs->op = (u8)Y;
-    pRhs->pPrior = X;
+    pRhs->pPrior = pLhs;
+    if( ALWAYS(pLhs) ) pLhs->selFlags &= ~SF_MultiValue;
     pRhs->selFlags &= ~SF_MultiValue;
     if( Y!=TK_ALL ) pParse->hasCompound = 1;
   }else{
-    sqlite3SelectDelete(pParse->db, X);
+    sqlite3SelectDelete(pParse->db, pLhs);
   }
   A = pRhs;
 }
 %type multiselect_op {int}
 multiselect_op(A) ::= UNION(OP).             {A = @OP;}

Index: test/select4.test
==================================================================
--- test/select4.test
+++ test/select4.test
@@ -907,7 +907,13 @@
   VALUES(1),(2),(3) EXCEPT VALUES(1),(3);
 } {2}
 do_execsql_test select4-14.15 {
   SELECT * FROM (SELECT 123), (SELECT 456) ON likely(0 OR 1) OR 0;
 } {123 456}
+do_execsql_test select4-14.16 {
+  VALUES(1),(2),(3),(4) UNION ALL SELECT 5 LIMIT 99;
+} {1 2 3 4 5}
+do_execsql_test select4-14.17 {
+  VALUES(1),(2),(3),(4) UNION ALL SELECT 5 LIMIT 3;
+} {1 2 3}
 
 finish_test