+ if (solid != nil)
+ [metadata setObject:solid forKey:@"LastVersion"];
+ changed = true;
+ } else {
+ NSDate *first([metadata objectForKey:@"FirstSeen"]);
+ NSDate *last([metadata objectForKey:@"LastSeen"]);
+ NSString *version([metadata objectForKey:@"LastVersion"]);
+
+ if (first == nil) {
+ first = last == nil ? now_ : last;
+ [metadata setObject:first forKey:@"FirstSeen"];
+ changed = true;
+ }
+
+ if (solid != nil)
+ if (version == nil) {
+ [metadata setObject:solid forKey:@"LastVersion"];
+ changed = true;
+ } else if (![version isEqualToString:solid]) {
+ [metadata setObject:solid forKey:@"LastVersion"];
+ last = now_;
+ [metadata setObject:last forKey:@"LastSeen"];
+ changed = true;
+ }
+ }
+
+ if (changed) {