tests/test-command-template.t

26126:7b625baed995

  $ hg log -l 3 --template 'line: {date|escape}\n'
  abort: template filter 'escape' is not compatible with keyword 'date'
  [255]

Behind the scenes, this will throw ValueError

  $ hg tip --template '{author|email|date}\n'
  hg: parse error: date expects a date information
  [255]

26127:7012be5ab5bd

  $ hg log -l 3 --template 'line: {date|escape}\n'
  abort: template filter 'escape' is not compatible with keyword 'date'
  [255]

  $ hg log -l 3 --template 'line: {extras|localdate}\n'
  hg: parse error: localdate expects a date information
  [255]

Behind the scenes, this will throw ValueError

  $ hg tip --template '{author|email|date}\n'
  hg: parse error: date expects a date information
  [255]