In cases where a URL has a trailing hyphen the FetchLinkCardService incorrectly removes the hyphen when it is parsed
The hyphen is not a reserved character in the URI spec https://tools.ietf.org/html/rfc3986#section-2.2
the slight mismatch in hashtag regex between js and ruby was causing
hashtag warning to be displayed for unlisted tweets when an invalid
hashtag was entered
exact version of ruby regex not possible in js as POSIX bracket
expressions are not supported, this version approximates and doesn't
give same unicode support
* upgrade vagrant box to xenial
this allows the redis version to be upgraded to support the new redis
features used in the activity tracker
* add libpam0g package to vagrant box
this is required for native extensions of gems to build after the
addition of PAM support was added in #5303
RVM has a known issue with installing Ruby 2.5 on the version of Ubuntu
the Vagrant box is using: https://github.com/rvm/rvm/issues/4291
This bug was preventing any gem installs in the vagrant box
Daniel KingandEugen Rochko