master 1d474ad: * etc/NEWS: Extend paragraph about &define form and backtracking

[Philipp Stephani]

branch: master
commit 1d474ad69d19d01b047012734530fb4c5eb82144
Author: Philipp Stephani <phst@google.com>
Commit: Philipp Stephani <phst@google.com>

    * etc/NEWS: Extend paragraph about &define form and backtracking
---
 etc/NEWS | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/etc/NEWS b/etc/NEWS
index 328c38c..5e37b38 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -2535,8 +2535,11 @@ back in Emacs 23.1.  The affected functions are: 
'make-obsolete',
 
 ** The 'values' variable is now obsolete.
 
-** The '&define' keyword in an Edebug specification now disables
-backtracking.
++++
+** The '&define' keyword in an Edebug specification now disables backtracking.
+The implementation was buggy, and multiple &define forms in an &or
+form should be exceedingly rare.  See the Info node 'Backtracking' in
+the Emacs Lisp reference manual for background.
 
 
 * Lisp Changes in Emacs 28.1