a277a8da

By: ValentinHirschi <valentin.hirschi@gmail.com>

preserve incoming constant indices while merging evaluators

Keep external-constant descriptors in the incoming evaluator unchanged while
scanning its constant table. Remap the copied destination descriptor only, so
its new index cannot alias a later incoming literal constant.

This dependency-only correction preserves the existing pinned base and nested
tensor-sum counter fix. The standalone Symbolica reproducer compares separate,
joint and merged evaluation against analytical values for factorized and
expanded expressions containing builtin i and pi: unpatched fails, patched
passes. No GammaLoop code or dependency-selection changes are included here.

User request:
Ok commit+push what you got here?
Then us there anyway you can think of improving the situation regarding the remaining integrable singularity here? What kind of sampling would be needed, can you experiment with various solutions to see if something can further improve the situation? Especially around max weights found?
You can now do longer integration run to monitor the behaviour, on 20 cores. Make sure you don't waste tokens though when waiting for the outcome.