doc: zone/reverse: some more description

diff --git a/doc/reference.rst b/doc/reference.rst
index f78a05946ac647bc87d71519e60788c840ef98c5..b10204bd6c45cb2fb45666d020071634c60b20ce 100644 (file)
--- a/doc/reference.rst
+++ b/doc/reference.rst
@@ -3080,6 +3080,10 @@ This option triggers the automatic generation of reverse PTR records based on
 A/AAAA records in the specified zones. The entire generated zone is automatically
 stored in the journal.
 
+The auto-generated reverse zone is re-generated whenever any of the specified zones
+is updated. This includes the situation when reverse generation had failed due to
+some of the specified zones were not yet loaded or had expired.
+
 Current limitations:
 
 - Is slow for large zones (even when changing a little).