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src/Decoder/BitMatrix.php

@@ -61,7 +61,7 @@ final class BitMatrix extends QRMatrix{
 		0x2BED, // 0010101111101101
 	];
 
-	private const FORMAT_INFO_MASK_QR = 0x5412;
+	private const FORMAT_INFO_MASK_QR = 0x5412; // 0101010000010010
 
 	private bool $mirror = false;
 

src/Decoder/LuminanceSourceAbstract.php

@@ -18,10 +18,7 @@ use function array_slice, array_splice, file_exists, is_file, is_readable, realp
 
 /**
  * The purpose of this class hierarchy is to abstract different bitmap implementations across
- * platforms into a standard interface for requesting greyscale luminance values. The interface
- * only provides immutable methods; therefore crop and rotation create copies. This is to ensure
- * that one Reader does not modify the original luminance source and leave it in an unknown state
- * for other Readers in the chain.
+ * platforms into a standard interface for requesting greyscale luminance values.
  *
  * @author dswitkin@google.com (Daniel Switkin)
  */