Create db head merge revision.

[dannon]

Merges the two alembic version heads (987ce9839ecb, e93c5d0b47a9) that exist after pulling #16818 forward to dev.

Heads identified with

[dannon@inneoin:~/work/galaxy] sh manage_db.sh version                                                        2 ↵dev
Activating virtualenv at .venv
987ce9839ecb (gxy) (head)
e93c5d0b47a9 (gxy) (head)
d4a650f47a3c (tsi) (head)

And then migration created with

./scripts/run_alembic.sh merge 987ce9839ecb e93c5d0b47a9

How to test the changes?

(Select all options that apply)

• I've included appropriate automated tests.
• This is a refactoring of components with existing test coverage.
• Instructions for manual testing are as follows:
  1. [add testing steps and prerequisites here if you didn't write automated tests covering all your changes]

License

• I agree to license these and all my past contributions to the core galaxy codebase under the MIT license.

[jdavcs]

Thank you, @dannon!