I read that a few weeks ago too, on Wiki.
It seems she chose Issa as a feminized form of Isaiah, around the same time she rejected her worldly belongings, but for a guitar... good for her I say! Oh to be as free...
To answer your question - I haven't had the good fortune to see her, neither ante- nor post-name-change!
By the way, thanks for the interesting post, Snowfalling.