World map error after upgrade to 1.0.1

[vialcollet]

I updated from 0.38 to 1.0.1.
I performed db upgrade as expected.
Then when trying to display a world map chart (directly or from dashboard) it is not loading and this message is displayed:

Admin user does not exist

My only admin user has bastien as a username.

Expected results

I am expecting the world map to be displayed eventhough there is no admin user with admin as a username.

Actual results

Following message is displayed:

Unexpected error
Admin user does not exist. Please, check if test users are properly loaded (`superset load_test_users`).

Screenshots

How to reproduce the bug

1. Install superset
2. Create an admin with a specific username other than admin
3. Log on the UI
4. Create a World map graph

Environment

(please complete the following information):

• superset version: 1.0.1
• python version: 3.8.7
• node.js version: 12

Checklist

• I have checked the superset logs for python stacktraces and included it here as text if there are any.
• [x ] I have reproduced the issue with at least the latest released version of superset.
• [x ] I have checked the issue tracker for the same issue and I haven't found one similar.

Additional context

I have workaround the issue by adding an admin user with admin as a username.

[vialcollet]

It's worth mentioning that this was working as expected in 0.38

[TheRum]

I'm also facing the same issue after upgrading to Superset 1.0.1.

[S-eb]

facing similar issues.upgrading from 0.38 to 1.0.1
creating an admin account named 'admin' seems to be a valid workaround

[TheRum]

I have upgraded Superset to 1.1.0 and still facing this issue .