Associated group select element loses its value if form validation fails when saving new doc form

[sjregan]

When adding a new doc within a group, if you save the form without a title (and the associated group select element value is set), when the form is shown again with the validation message, the associated group select element has an incorrect value.

Fix: https://github.com/boonebgorges/buddypress-docs/pull/667

[boonebgorges]

Fixed in #668