installation with composer

last packages Idownloaded have problems with composer installation most like this :

Failed to execute unzip -qq '/..../vendor/phpclasses/pluscode/86260fda16db9be7da958960d358bfb2.zip' -d '/.../vendor/composer/bc939890'

warning [/..../vendor/phpclasses/pluscode/86260fda16db9be7da958960d358bfb2.zip]: 3430 extra bytes at beginning or within zipfile
(attempting to process anyway)

The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpclasses/pluscodelocal (1.0.0): Downloading (100%)
Failed to execute unzip -qq '/..../vendor/phpclasses/pluscodelocal/90fb12afbf20666b1de23400f7f0beaf.zip' -d '/.../vendor/composer/925074c8'

Sorry for the delay. We use the zip program to create zip archives. Despite the OS running on the server is recent, the zip program version is a bit old. It seems the alternatives that composer tries are not able to deal with some extra bytes section that the zip program creates, as explained here:

unix.stackexchange.com/questions/11 ...

We have added this issue to our to do list. Would you be able to test a possible fix when we implement it?

Yes I can do it.
When the feature will be released.

I think this was already fixed some time ago. Can you test it now?

I can confirm it is working fine now.