The compress roundtrip check is not 100% effective since it uses strings.

[KristofferC]

In JuliaRegistries/General#65997 I effectively did a no-op by loading the Registry into the Pkg Registry datastructure and then saving it back out. However, this caused a big diff even though RegistryCI has a check for this

RegistryCI.jl/src/registry_testing.jl

Lines 222 to 223 in b98ce77

	compressed = RegistryTools.Compress.compress(
	compatfile, RegistryTools.Compress.load(compatfile)

.

The reason for this is that the Compress.load is using strings and therefore sees a difference between version specs that are written differently but are in fact the same. For example in:

my PR noticed that 0.2 and 0.2.0 - 0.2 where the same version range and collapsed that into the broader version range of the package above while this was missed in CI since the strings were different.