The "PRAGMA writable_schema=ON" flag should not allow OOM errors to pass

while parsing the schema.
dbsqlfuzz 9cc49e1a53e1cef8e3a1496a88c683aa20483163.

FossilOrigin-Name: a7abb725c7c783331e73837597917e25e5ff692aac8ec97a0a8c0e30db62d68b

src/prepare.c

@@ -389,7 +389,7 @@ int sqlite3InitOne(sqlite3 *db, int iDb, char **pzErrMsg, u32 mFlags){
     sqlite3ResetAllSchemasOfConnection(db);
     pDb = &db->aDb[iDb];
   }else
-  if( rc==SQLITE_OK || (db->flags&SQLITE_NoSchemaError)){
+  if( rc==SQLITE_OK || ((db->flags&SQLITE_NoSchemaError) && rc!=SQLITE_NOMEM)){
     /* Hack: If the SQLITE_NoSchemaError flag is set, then consider
     ** the schema loaded, even if errors (other than OOM) occurred. In
     ** this situation the current sqlite3_prepare() operation will fail,