Only two treaps are initialized by the GC so each of them can be given a predetermined seed. Meager discussion began at https://github.com/ldc-developers/druntime/pull/168
@n8sh created dlang/druntime pull request #2919 "Fix Issue 20550 - Use fixed seeds for treaps in GC" fixing this issue: - Fix Issue 20550 - Use fixed seeds for treaps in GC https://github.com/dlang/druntime/pull/2919
dlang/druntime pull request #2919 "Fix Issue 20550 - Use fixed seeds for treaps in GC" was merged into master: - bc5832a8a47c5009da19654258ac1a65434e3c0a by Nathan Sashihara: Fix Issue 20550 - Use fixed seeds for treaps in GC https://github.com/dlang/druntime/pull/2919