Tab is treated as 8 spaces

[iacore]

Bug in source code:

https://github.com/tree-sitter/tree-sitter-python/blob/24b530ca158d2782ea9046e756057a412e16b52f/src/scanner.cc#L242

Minimal example: test-indent.txt

> tree-sitter parse ../test-indent.txt
(module [0, 0] - [3, 0]
  (function_definition [0, 0] - [2, 39]
    name: (identifier [0, 4] - [0, 9])
    parameters: (parameters [0, 9] - [0, 11])
    body: (block [1, 8] - [2, 39]
      (expression_statement [1, 8] - [1, 49]
        (call [1, 8] - [1, 49]
          function: (identifier [1, 8] - [1, 13])
          arguments: (argument_list [1, 13] - [1, 49]
            (string [1, 14] - [1, 48]))))
      (expression_statement [2, 1] - [2, 39]
        (call [2, 1] - [2, 39]
          function: (identifier [2, 1] - [2, 6])
          arguments: (argument_list [2, 6] - [2, 39]
            (string [2, 7] - [2, 38])))))))

Python 3 disallow mixed use of spaces and tabs for indentation, so I think the above file should not give a valid result.