[wp-trac] [WordPress Trac] #17904: Multisite has more restrictions on user login character set

[WordPress Trac]

#17904: Multisite has more restrictions on user login character set
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 Reporter:  duck_                                |       Owner:
     Type:  defect (bug)                         |      Status:  new
 Priority:  normal                               |   Milestone:  Future
Component:  Login and Registration               |  Release
 Severity:  normal                               |     Version:  3.0
 Keywords:  dev-feedback has-patch needs-unit-   |  Resolution:
  tests                                          |     Focuses:  multisite
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Comment (by jdaviescoates):

 I would LOVE this issue to be resolved asap. This has been reported since
 3.0 and now we're on 4.0! When setting up stand alone installs of
 wordpress I nearly always use email addresses for usernames when setting
 new users because they tend to be both a lot longer and more varied (and
 hence a lot harder to guess/ more secure) than the short a-z 0-9
 restricted user names currently possible with mulitisite installs. I just
 tried to create new user on a multisite install using an email address but
 hit this issue.  My work around for now is to use
 [https://wordpress.org/plugins/force-email-login/ this plugin] that
 requires people use their email address instead of their username to
 login.

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Ticket URL: <https://core.trac.wordpress.org/ticket/17904#comment:28>
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