Issue saving & loading larger nested dictionaries from v0.4.53 onwards

[matthew-liu-1]

Currently working on a use case that involves saving large nested dictionaries and have recently upgraded JLD2 to v0.5.3 from v0.4.52
After upgrading, dictionaries of an arbitrarily large size can no longer be saved & loaded properly.

This issue appears from JLD2 v0.4.53 onwards.

Analysis:

1. A large dictionary (see line 58 below) can be saved in JLD2 v0.4.52 and loaded in JLD2 v0.4.53
2. A large dictionary (see line 58 below) cannot be saved and loaded in JLD2 v0.4.53

Reproducible code example:
https://github.com/matthew-liu-1/JLD2.jl/blob/large_obj_issue/test/jld2_io_error/error_script.jl

System information:
Julia version: 1.10.4
RAM: 32 gb
CPU: 13th Gen Intel(R) Core(TM) i7-13700H

[JonasIsensee]

Thank you for this report. That made it easy to reproduce and possible to track down the problem.

v0.5.4 should fix this and be out later today.

[matthew-liu-1]

Thank you @JonasIsensee for the quick turnaround!