[xwiki-users] Underscores in attachment file names are stripped on upload

Hi. I think it is well known in the XE user and developer community that the attachment names listed in the attachment table have "_" (underscore) and spaces are stripped. I was wondering if there is a JIRA entry for this bug and when is it expected to be fixed? I am not concerned about spaces being stripped, but stripping the underscores is a major irritant for end users because they prefer to have it as word seperators in their local files and want to keep the same association so that they can modify-upload new versions. Note that '-' (hyphen) is not stripped, so it reasonable to expect that underscores shouldn't be stripped too. Thanks, Milind