After
I am not at my calibre PC so I cant do any screen shots
I created an fresh library called 'ΩLast'
Using the Add Empty book option, I added a book with Author 'Better Red' and Title "Book One', I checked the create EPUB option.
Then I F2'd the Author cell and pasted the 'Ω' at the front of the Author cell and pressed Enter, the error "Failed to set data: blah-blah" popped, but when I dismissed it I had 'ΩBetter Red' in the Author cell.
When I opened the Book folder I noticed the epub file was a hardlink (I have a utility that puts a red overlay glyph on hardlinked files). Then i discovered I had 'Better Red' and 'OBetter Red" Author folders (the 'O' being the Latinised Ω), and there was a 'Book One (1)' folder in both Author folders and in the two book folders there was a hardlink to the epub file, viz:
Code:
ΩLast
Better Red
Book One (1)
Book One - Better Red.epub (hardlink)
OBetter Red
Book One (1)
Book One - OBetter Red.epub (hardlink)
So I did as KG asked and repeated it in a calibre --ignore plugins instance, and I didn't get an error.
The only plugin that looked like it might do anything on an author name change was GFN, so I moved it out of the plugins folder and tried again - and there was no error.
Hope that helps.
Take care
BR