Restore assignment reserve functionality after admission fix

[ja7ad]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 98.68421% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 69.82%. Comparing base (a8fb19c) to head (9276b29).

Files with missing lines	Patch %	Lines
crates/hydra-core/src/sched.rs	98.68%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #69      +/-   ##
==========================================
+ Coverage   69.72%   69.82%   +0.10%     
==========================================
  Files          58       58              
  Lines       19670    19740      +70     
==========================================
+ Hits        13714    13784      +70     
  Misses       5956     5956              

Files with missing lines	Coverage Δ
crates/hydra-core/src/sched.rs	96.26% <98.68%> (+0.26%)	⬆️

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