vi/ex (v3.7) :recover problem.

[Steve Grandi]

Subject: Problem with ex/vi (version 3.7) :recover command

Index: 	/usr/src/ucb/ex/ex_cmds.c 4.2BSD

Description:
	Recovering a "preserved" editor session following an editor
crash with the :recover command does not cause the "changed" flag to 
be set; an immediate ZZ will cause the recovered changes to be lost forever.

Repeat-By:
	Edit an existing file with vi.  Cause an editor crash (pushing
the white button on the front of the 750 is one way; a more friendly
technique is the :preserve command).  Once more start up vi to edit the
file and use :recover to restore things.  IMMEDIATELY enter ZZ to save
the file.  Look at the saved file and notice that the carefully
restored changes have disappeared.

Fix:
*** ex_cmds.c.ORIG	Wed Jun 15 14:02:18 1983
--- ex_cmds.c	Wed Nov  7 19:14:48 1984
***************
*** 516,522
  					tlaste();
  #endif
  					laste = 0;
- 					sync();
  					nochng();
  					continue;
  				}

--- 516,521 -----
  					tlaste();
  #endif
  					laste = 0;
  					nochng();
  					continue;
  				}

-- 
Steve Grandi, National Optical Astronomy Observatories, Tucson, AZ
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