Creating an issue in a board with a weight in scope does not add weight

Summary

When an issue board has a set weight in its scope, creating an issue in a list should assign this weight to it.

Steps to reproduce

• On an issue board, click Edit board in the top right corner.
• Select a weight and save.
• Create an issue in a column

What is the current bug behavior?

• The issue has no weight

What is the expected correct behavior?

• The issue should have the same weight as the one defined in board scope

Relevant logs and/or screenshots

Board_weight_-_Before

Output of checks

Results of GitLab environment info

Expand for output related to GitLab environment info

(For installations with omnibus-gitlab package run and paste the output of:
`sudo gitlab-rake gitlab:env:info`)

(For installations from source run and paste the output of:
`sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production`)

Results of GitLab application Check

Expand for output related to the GitLab application check

(For installations with omnibus-gitlab package run and paste the output of:
sudo gitlab-rake gitlab:check SANITIZE=true)
(For installations from source run and paste the output of:
sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true)
(we will only investigate if the tests are passing)

Possible fixes