[FIX] website_theme_install: do not crash when canceling update

How to reproduce

 * install website_theme_install;
 * go on Apps -> Apply scheduled upgrades;
 * Hit Cancel;
 * there is a crash because somehow when writing on module self is a void
   recordset and self.name is therefore False and cannot starts with 'theme';

This commit fixes that by ensuring self is not void before checking its
name.

0 files changed, 0 insertions, 0 deletions