wip

Author: bbrks

db/document.go

@@ -987,6 +987,7 @@ func (doc *Document) updateChannels(ctx context.Context, newChannels base.Set) (
 			doc.updateChannelHistory(channel, doc.Sequence, true)
 		}
 	}
+	doc.currentRevChannels = newChannels
 	if changed != nil {
 		base.InfofCtx(ctx, base.KeyCRUD, "\tDoc %q / %q in channels %q", base.UD(doc.ID), doc.CurrentRev, base.UD(newChannels))
 		changedChannels, err = channels.SetFromArray(changed, channels.KeepStar)
@@ -1093,13 +1094,15 @@ func (doc *Document) UnmarshalJSON(data []byte) error {
 	}
 
 	// determine current revision's channels and store in-memory (avoids doc.Channels iteration at access-check time)
-	ch := base.SetOf()
-	for channelName, channelRemoval := range doc.Channels {
-		if channelRemoval == nil || channelRemoval.Seq == 0 {
-			ch.Add(channelName)
+	if len(doc.Channels) > 0 {
+		ch := base.SetOf()
+		for channelName, channelRemoval := range doc.Channels {
+			if channelRemoval == nil || channelRemoval.Seq == 0 {
+				ch.Add(channelName)
+			}
 		}
+		doc.currentRevChannels = ch
 	}
-	doc.currentRevChannels = ch
 
 	// Unmarshal the rest of the doc body as map[string]interface{}
 	if err := doc._body.Unmarshal(data); err != nil {