[gnome-maps/wip/osm-edit: 42/47] osmApi: Make comment and source optional for changesets.

[Marcus Lundblad <mlundblad src gnome org>]

commit 5027b8ae0b4c1800b00dd07681f2efe4b904ddd2
Author: Marcus Lundblad <ml update uu se>
Date:   Sat Mar 14 17:38:30 2015 +0100

    osmApi: Make comment and source optional for changesets.

 src/osmChangeset.js |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/osmChangeset.js b/src/osmChangeset.js
index 25af457..21f3f00 100644
--- a/src/osmChangeset.js
+++ b/src/osmChangeset.js
@@ -32,8 +32,11 @@ const OSMChangeset = new Lang.Class({
 
        // add default tags
        this.setTag('created_by', 'gnome-maps ' + pkg.version);
-       this.setTag('comment', comment);
-       this.setTag('source', source);
+
+       if (comment)
+           this.setTag('comment', comment);
+       if (source)
+           this.setTag('source', source);
        
        // undefined changeset ID until the changeset has been opened
        this._id = undefined;