[latex3-commits] [git/LaTeX3-latex3-latex3] clear-drop: Document that drop applies to globals [ci skip] (ac9a36c)

[Joseph Wright]

Repository : https://github.com/latex3/latex3
On branch  : clear-drop
Link       : https://github.com/latex3/latex3/commit/ac9a36cc7c8ebac6813d6f81994e8ecc700534da

>---------------------------------------------------------------

commit ac9a36cc7c8ebac6813d6f81994e8ecc700534da
Author: Joseph Wright <joseph.wright at morningstar2.co.uk>
Date:   Thu Jan 17 22:40:21 2019 +0000

    Document that drop applies to globals [ci skip]


>---------------------------------------------------------------

ac9a36cc7c8ebac6813d6f81994e8ecc700534da
 l3kernel/l3box.dtx |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/l3kernel/l3box.dtx b/l3kernel/l3box.dtx
index 4c6e65d..f564590 100644
--- a/l3kernel/l3box.dtx
+++ b/l3kernel/l3box.dtx
@@ -576,7 +576,9 @@
 % second will show the letter |A| in the box.
 %
 % These functions should be preferred when the content of the box is no
-% longer required after use.
+% longer required after use. Note that due to the unusual scoping behaviour of
+% \texttt{drop} functions they may be applied to both local and global boxes:
+% the latter will naturally be set and thus cleared at a global level.
 %
 % \begin{function}{\box_use_drop:N, \box_use_drop:c}
 %   \begin{syntax}