Fatal errors with special chars in descriptions
I found out that using special chars in description-fields results in strange behaviour:
Entering chars like umlauts in the description-fields of aliases, they are not shown later.
Entering umlauts in the description-fields of added Port-aliases, config will be immediately reset to an older version. This is really fatal.
Same with hosts as alias.
I added this as a bug report: http://redmine.pfsense.org/issues/1168
Most description fields are CDATA protected and not prone to this. As I mentioned in the ticket you opened, the detail field of an alias (the per-entry descriptions) aren't protected in this way, though they should be.
I committed a couple of fixes for this. It should be OK now on snapshots dated after this post.
I'll try and report back! Thanks for that quick resolution!