Subject: xref revert-buffer

From: Juri Linkov <[email-masked]>
Date: Sun, 12 May 2019 22:45:41 +0300

I tried to use project-find-regexp more often than rgrep,
but xref misses an important feature: typing 'g' in the
*xref* buffer fails with this error:

Debugger entered--Lisp error: (error "Buffer does not seem to be associated with any file")
  signal(error ("Buffer does not seem to be associated with any file"))
  error("Buffer does not seem to be associated with any file")
  revert-buffer--default(t nil)
  revert-buffer(t)
  funcall-interactively(revert-buffer t)
  call-interactively(revert-buffer nil nil)
  command-execute(revert-buffer)