when an input box is disabled do not update the value ever!
when an input box is disabled do not update the value ever!

fixed bug where...
previously after successfully uploading a SiteIcon and then trying to upload
a new one, on the second upload the name would change from SiteIcon to the filename however
you would be unable to edit it to change it back to SiteIcon.

TiddlySpace/tiddlyspace,TiddlySpace/tiddlyspace,FND/tiddlyspace,TiddlySpace/tiddlyspace,FND/tiddlyspace,FND/tiddlyspace