Space key containing URI Reserved Characters causes 404 Error

Summary

Confluence complains 404 not found error if the space key contains at least 1 URI reserved characters.

Steps to Reproduce

1. Login as a user whose username contains URI reserved characters such as sample.username@example.com
2. Create a Personal Space
3. Confirm the created space shows 404 error

Expected Results

Able to access the space.

Actual Results

Unable to access the space due to 404 error.

Notes

• RFC 3986: URI reserved Characters

  !	*	'	(	)	;	:	@	&	=	+	$	,	/	?	#	[	]
  

Workaround

• (Temporal) Directly access non-percent-encoded URL. For example:
  • /wiki/spaces/~sample.username%40example.com/overview
  • /wiki/spaces/~sample.username@example.com/overview
• (Permanent) Contact https://support.atlassian.com/contact/