fix ec reaction bug

[aabills]

Description

#4394 introduced a bug in ec-reaction limited sei, this reverts the problematic change

@kratman lets do a patch release
@kawaMANMI can you take a look at this and make sure it doesn't break your code. also please try and be careful with stuff like this

Fixes #4773

Type of change

Please add a line in the relevant section of CHANGELOG.md to document the change (include PR #) - note reverse order of PR #s. If necessary, also add to the list of breaking changes.

• New feature (non-breaking change which adds functionality)
• Optimization (back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)

Key checklist:

• No style issues: $ pre-commit run (or $ nox -s pre-commit) (see CONTRIBUTING.md for how to set this up to run automatically when committing locally, in just two lines of code)
• All tests pass: $ python -m pytest (or $ nox -s tests)
• The documentation builds: $ python -m pytest --doctest-plus src (or $ nox -s doctests)

You can run integration tests, unit tests, and doctests together at once, using $ nox -s quick.

Further checks:

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.69%. Comparing base (c9cb2bb) to head (1dd2fcb).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #4774      +/-   ##
===========================================
+ Coverage    98.66%   98.69%   +0.03%     
===========================================
  Files          303      303              
  Lines        23227    23226       -1     
===========================================
+ Hits         22916    22923       +7     
+ Misses         311      303       -8     

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[Brushnie]

there is a typo in the change-log, "ec-reaction" not "wc-reaction"

[kratman]

@Brushnie I saw it when I made the release. I have a PR up for it