Fix CasePath object-constrained existential extraction

[kmcbride]

Ports the fix for the issue we encountered.

[codecov]

Codecov Report

Merging #184 (7fdc12f) into master (b01c5cf) will decrease coverage by 0.82%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #184      +/-   ##
==========================================
- Coverage   96.17%   95.34%   -0.83%     
==========================================
  Files          43       43              
  Lines        1437     1439       +2     
==========================================
- Hits         1382     1372      -10     
- Misses         55       67      +12     

Flag	Coverage Δ
ios	95.34% <ø> (-0.83%)	⬇️
macspm	95.37% <ø> (-0.77%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...usCore/Source/EffectHandlers/EffectRouterDSL.swift	86.66% <0.00%> (-13.34%)	⬇️
MobiusCore/Source/EffectHandlers/EnumRoute.swift	75.00% <0.00%> (-8.34%)	⬇️
...rowableAssertion/Source/MobiusThrowableAssertion.m	91.66% <0.00%> (-8.34%)	⬇️
MobiusCore/Source/MobiusLogger.swift	78.26% <0.00%> (-4.35%)	⬇️
MobiusCore/Source/ConcurrentAccessDetector.swift	41.66% <0.00%> (-3.79%)	⬇️
...iusCore/Source/AsyncDispatchQueueConnectable.swift	93.75% <0.00%> (-3.13%)	⬇️
MobiusCore/Source/AsyncStartStopStateMachine.swift	91.30% <0.00%> (-2.90%)	⬇️
MobiusExtras/Source/ConnectableClass.swift	88.88% <0.00%> (-2.23%)	⬇️
MobiusCore/Source/MobiusController.swift	98.02% <0.00%> (-0.66%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b01c5cf...7fdc12f. Read the comment docs.

[rastersize]

Thanks!