currently, in fetchmail while create an incoming mail server, Set a server name while being in POP or IMAP server type and Switch to "Local" server type the server name is erased. with this commit, the value of the server name should not be erased with onchange. closes odoo/odoo#69250 Taskid: 2258523 X-original-commit: cf102783b43a44a38565768129ef414758a71fc6 Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>