@@ -, +, @@ says LEAVE UNCHANGED --- C4/CourseReserves.pm | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/C4/CourseReserves.pm +++ a/C4/CourseReserves.pm @@ -590,7 +590,9 @@ sub _RevertFields { my $mod_item_params; foreach my $field ( @FIELDS ) { - $mod_item_params->{$field} = $course_item->{$field}; + if (defined $course_item->{$field} and $course_item->{$field} ne '') { + $mod_item_params->{$field} = $course_item->{$field}; + } } ModItem( $mod_item_params, undef, $course_item->{'itemnumber'} ) if $mod_item_params && %$mod_item_params; --