Created attachment 1195933 [details]
Creates 40 projects and adds 'admin' as a member to those projects.

Description of problem:
Project dropdown which is present on the top navigation bar does not list all the projects to which the user belongs to. 

This happens when user is a _member_ of 35+ projects.

Project dropdown is used to quickly switch between the projects.

There should be a scroll bar to scroll through all the projects.

Version-Release number of selected component (if applicable):
I checked this in OSP7, OSP8 and OSP9. It is reproducible in these three releases.

How reproducible:
Everytime.

Steps to Reproduce:
1.Create 35+ projects and assign 'admin' or any user as '_member_' or any other role.

2. Logout from the Horizon Dashboard and login again. Click the 'Project' dropdown button. You will see random projects being listed and not all the projects that this user is a member of.


Actual results:
Not all projects are listed in the 'Project' dropdown.

Expected results:
All the projects of the user should be listed in the 'Project' dropdown.

Additional info:
I have created a bash script to create projects (test1...test40) and add 'admin' as a _member_ to those projects. It would help anybody to quickly create the projects and test the results. I am attaching the tiny script to this BZ.