Query condition should use fragment's array schema (#2698) (#2743)

With schema evolution each fragment now carries a reference to its array
schema. This is the schema that should be used when looping over the
tile to apply query condition. This ensures that the schema matches the
tile.

Co-authored-by: Seth Shelnutt <seth@tiledb.io>

tiledb/sm/query/dense_reader.cc

@@ -554,7 +554,7 @@ Status DenseReader::apply_query_condition(
                       &start,
                       &end)) {
                 RETURN_NOT_OK(condition_.apply_dense<DimType>(
-                    array_schema_,
+                    fragment_metadata_[frag_domains[i].first]->array_schema(),
                     it->second.result_tile(frag_domains[i].first),
                     start,
                     end - start + 1,

tiledb/sm/query/sparse_index_reader_base.cc

@@ -553,7 +553,7 @@ Status SparseIndexReaderBase::apply_query_condition(
 
             // Compute the result of the query condition for this tile.
             RETURN_NOT_OK(condition_.apply_sparse<BitmapType>(
-                array_schema_,
+                fragment_metadata_[rt->frag_idx()]->array_schema(),
                 &*rt,
                 rt->bitmap_.data(),
                 &rt->bitmap_result_num_));