Crash when creating new records with checkboxes expanding more than one row
This is what is described in https://discuss.tryton.org/t/problema-al-crear-productos-en-sao-despues-de-actualizar-de-6-2-a-7-0/8970
The following error is shown in the browser console:
```
jQuery.Deferred exception: cols[(i - 1)] is undefined set_grid_template@http://localhost:8000/dist/tryton-sao.js:15468:21
display/<@http://localhost:8000/dist/tryton-sao.js:15146:35
c@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:25304
add@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:25583
display@http://localhost:8000/dist/tryton-sao.js:15122:18
display@http://localhost:8000/dist/tryton-sao.js:13618:45
record_modified@http://localhost:8000/dist/tryton-sao.js:13527:29
Sao.Group/array.record_modified@http://localhost:8000/dist/tryton-sao.js:7837:28
Sao.Group/array.record_modified@http://localhost:8000/dist/tryton-sao.js:7843:35
_set_value@http://localhost:8000/dist/tryton-sao.js:9912:23
set@http://localhost:8000/dist/tryton-sao.js:9928:18
set_default@http://localhost:8000/dist/tryton-sao.js:10015:25
set_default@http://localhost:8000/dist/tryton-sao.js:8601:56
default_get/<@http://localhost:8000/dist/tryton-sao.js:8571:33
e@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27028
Deferred/then/l/</t<@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27330
setTimeout handler*Deferred/then/l/<@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27594
c@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:25304
add@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:25583
Deferred/then/<@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27691
Deferred@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:28106
then@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27620
default_get@http://localhost:8000/dist/tryton-sao.js:8556:28
new_/<@http://localhost:8000/dist/tryton-sao.js:13806:34
e@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27028
Deferred/then/l/</t<@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27330
setTimeout handler*Deferred/then/l/<@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27594
c@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:25304
add@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:25583
Deferred/then/<@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27691
Deferred@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:28106
then@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27620
new_@http://localhost:8000/dist/tryton-sao.js:13793:24
new_/<@http://localhost:8000/dist/tryton-sao.js:11401:36
e@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27028
Deferred/then/l/</t<@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27330
setTimeout handler*Deferred/then/l/<@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27594
c@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:25304
fireWith@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:26053
fire@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:26089
c@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:25304
fireWith@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:26053
e@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27300
Deferred/then/l/</t<@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27330
setTimeout handler*Deferred/then/l/<@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27594
c@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:25304
add@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:25583
Deferred/then/<@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27691
Deferred@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:28106
then@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:27620
modified_save@http://localhost:8000/dist/tryton-sao.js:11361:50
new_@http://localhost:8000/dist/tryton-sao.js:11400:25
create_toolbar/add_button/<@http://localhost:8000/dist/tryton-sao.js:10839:35
dispatch@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:40035
add/v.handle@http://localhost:8000/bower_components/jquery/dist/jquery.min.js:2:38006
undefined 4 jquery.min.js:2:28648
```
The problem is raised because there are several checkboxes in the checkboxes group and they do not have enought space to be shown in a single row and are expanded into two rows:
This is because a new field is added in custom module with the following xml:
```xml
<xpath expr="//group[@id='checkboxes']" position="inside">
<newline />
<label name="show_in_web_sale" />
<field name="show_in_web_sale" />
</xpath>
```
Removing such field from the view fixes the error and everything works as expected.
issue