Bug Fixes
---------

- Fix a bug in fhandler_dev_clipboard::read() that the second read
  fails with 'Bad address'.
  Addresses: https://cygwin.com/pipermail/cygwin/2021-December/250141.html

- Convert UNC path prefix back to drive letter in symlink_info::check().
  This solves the following issues:
  Addresses: https://cygwin.com/pipermail/cygwin/2021-November/250087.html
             https://cygwin.com/pipermail/cygwin/2021-December/250103.html

- Fix a bug in pty code that input is wrongly sent to io_handle_nat
  rather than io_handle while neither read() nor select() is called
  after the cygwin app is started from non-cygwin app.
  Addresses: https://cygwin.com/pipermail/cygwin-patches/2021q4/011587.html

- Avoid a crash when NtQueryInformationProcess returns invalid handle data.
  Addresses: https://cygwin.com/pipermail/cygwin-patches/2021q4/011611.html

- Ignore INHERIT ACEs when reading the DACL of non-directory files.
  Addresses: https://cygwin.com/pipermail/cygwin/2022-January/250363.html