CIF parser fix

src/mol-io/reader/cif/text/parser.ts

@@ -502,7 +502,7 @@ async function handleLoop(tokenizer: TokenizerState, ctx: FrameContext): Promise
         moveNext(tokenizer);
     }
 
-    const rowCountEstimate = name === 'atom_site' ? (tokenizer.data.length / 100) | 0 : 32;
+    const rowCountEstimate = name === '_atom_site' ? (tokenizer.data.length / 100) | 0 : 32;
     const tokens: Tokens[] = [];
     const fieldCount = fieldNames.length;
     for (let i = 0; i < fieldCount; i++) tokens[i] = TokenBuilder.create(tokenizer, rowCountEstimate);