EditBug:10087 Python error on merge author

When I approved submission 197751, which gave me this display:

Column 		KeepId [597] 				DropId [20567] Canonical 	Richard Parks 				B. Richard Parks Legalname 	Parks, Richard 				- Birthplace 	Newton, MS, USA 			- Birthdate 	1955-06-15 				- Deathdate 	- 					- Emails 		brp1@sff.net				- Webpages 	http://www.dm.net/~richard-parks/ 	- Wikipedia 	- 					- Imdb 	- 						- Imdb 	- 						-

I got the following error:

update authors set author_canonical='B. Richard Parks' where author_id='597' --> --> TypeError	Python 2.4.2: /usr/local/bin/python Mon Jan 15 15:33:10 2007

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred. /www/isfdb.tamu.edu/root/cgi-bin/mod/aa_merge.cgi 169        merge = doc.getElementsByTagName('AuthorMerge') 170        if merge: 171                AuthorMerge(db, recno, doc) 172  173         submitter = GetElementValue(merge, 'Submitter') AuthorMerge = , db = <_mysql.connection open to 'localhost' at 82adc0c>, recno = '197751', doc =  /www/isfdb.tamu.edu/root/cgi-bin/mod/aa_merge.cgi in AuthorMerge(db=<_mysql.connection open to 'localhost' at 82adc0c>, recno='197751', doc=) 98        id = GetElementValue(merge, 'Legalname') 99        if id and id != KeepId: 100                moveAuthorColumn(db, 'author_legalname', KeepId, DropId) 101  102         id = GetElementValue(merge, 'Birthplace') global moveAuthorColumn = , db = <_mysql.connection open to 'localhost' at 82adc0c>, KeepId = '597', DropId = '20567' /www/isfdb.tamu.edu/root/cgi-bin/mod/aa_merge.cgi in moveAuthorColumn(db=<_mysql.connection open to 'localhost' at 82adc0c>, column='author_legalname', keep='597', drop='20567') 66        record = result.fetch_row 67        value = record[0][0] 68        update = "update authors set %s='%s' where author_id='%d'" % (column, db.escape_string(value), int(keep)) 69        print " ", update 70        db.query(update) update undefined, column = 'author_legalname', db = <_mysql.connection open to 'localhost' at 82adc0c>, db.escape_string = , value = None, builtin int = , keep = '597'

TypeError: escape_string argument 1 must be string or read-only buffer, not None args = ('escape_string argument 1 must be string or read-only buffer, not None',)