Bug Fixes
---------

- Fix a bug that accessing UNC path mounted to a drive letter using
  SMB3.11 fails with error "Too many levels of symbolic links.".

- Fix a console bug that escape sequence IL/DL (CSI Ps L, CSI Ps M)
  does not work correctly at the last line.
  Addresses: https://cygwin.com/pipermail/cygwin/2022-February/250736.html

- Fix a problem that ENABLE_INSERT_MODE and ENABLE_QUICK_EDIT_MODE
  flags are cleared if cygwin is started in console.

- Fix an issue that cmd.exe also is terminated along with the cygwin
  app started from the cmd.exe if the cygwin app is terminated by
  Ctrl-C.

- Fix deadlock caused when keys are typed in pty while a lot of text
  output.

- Fix a problem that the console mode for input is not set correctly
  when non-cygwin app is started with stdin redirected.
  Addresses:
  https://github.com/GitCredentialManager/git-credential-manager/issues/576

- Fix some problems such as:
   1) If output of non-cygwin app and input of cygwin app are connected
      by a pipe, Ctrl-C has to be sent twice to stop apps when the
      cygwin app does not read stdin at the moment.
   2) In cmd.exe started from cygwin shell, if output of non-cygwin
      app and input of cygwin app are connected by a pipe, Ctrl-C
      can never terminate the apps.

- Fix exit code when non-cygwin app is terminated by Ctrl-C.

- Fix a bug that the order of the console key inputs are occasionally
  swapped, especially when CPU load is high.
  Addresses: https://cygwin.com/pipermail/cygwin/2022-February/250957.html

- Fix a problem that fsync() flushes the console input buffer unlike
  linux. fsync() should return EINVAL for special files such as tty.
  Addresses: https://cygwin.com/pipermail/cygwin/2022-March/251022.html