Preserve whitespace option doesn't handle blank lines and IfModule

[uriariel]

Traceback (most recent call last): File "/usr/local/bin/apacheconfigtool", line 10, in <module> sys.exit(main()) File "/usr/local/lib/python3.7/dist-packages/apacheconfig/apacheconfigtool.py", line 222, in main config = loader.load(config_file) File "/usr/local/lib/python3.7/dist-packages/apacheconfig/loader.py", line 399, in load return self.loads(f.read(), source=filepath) File "/usr/local/lib/python3.7/dist-packages/apacheconfig/loader.py", line 353, in loads self._ast_cache[source] = self._walkast(ast) File "/usr/local/lib/python3.7/dist-packages/apacheconfig/loader.py", line 321, in _walkast return handler(ast[1:]) File "/usr/local/lib/python3.7/dist-packages/apacheconfig/loader.py", line 44, in g_config items = self._walkast(subtree) File "/usr/local/lib/python3.7/dist-packages/apacheconfig/loader.py", line 321, in _walkast return handler(ast[1:]) File "/usr/local/lib/python3.7/dist-packages/apacheconfig/loader.py", line 95, in g_contents items = self._walkast(subtree) File "/usr/local/lib/python3.7/dist-packages/apacheconfig/loader.py", line 321, in _walkast return handler(ast[1:]) File "/usr/local/lib/python3.7/dist-packages/apacheconfig/loader.py", line 69, in g_block name, _, value = tag ValueError: not enough values to unpack (expected 3, got 2)

and even when I'm getting rid of blank lines, the parser with this option produces other errors.

Failed to parse Apache config conf/httpd.conf_b: Unsupported AST node type IfModule