X-Git-Url: https://code.citadel.org/?p=citadel.git;a=blobdiff_plain;f=citadel%2Ftechdoc%2Fhack.txt;fp=citadel%2Ftechdoc%2Fhack.txt;h=c4fec985d563df1c9700b902982b5cf5fa40fce7;hp=20e45a5498d4e12bb68509c80ef20117f1e6104a;hb=79b223cc3fa9d72e4b202b1e5a32adcb53210c37;hpb=7d014eb06c42f620b197a9530051326f46ae6c9b

diff --git a/citadel/techdoc/hack.txt b/citadel/techdoc/hack.txt
index 20e45a549..c4fec985d 100644
--- a/citadel/techdoc/hack.txt
+++ b/citadel/techdoc/hack.txt
@@ -293,6 +293,8 @@ Y	carbon copY	Optional, and only in Mail messages.
 1	suppress index	The presence of this field indicates that the message is
 			disqualified from being added to the full text index.
 2	extnotify	Used internally by the serv_extnotify module.
+3	msgnum		Used internally to pass the local message number in the
+			database to after-save hooks.  Discarded afterwards.
   
 			EXAMPLE