Bitbucket import since Gitlab 7.14: Error saving project

After clicking on import button on page https://gitlab.com/import/bitbucket/status, button is replaced by text:

Error saving project: Name can contain only letters, digits, '', '.', dash and space. It must start with letter, digit or ''.

Repository I'm trying to import is gadelat/meetnlearn-nette-test and it's name is meet'n'learn Nette test.

Related: gitlab-foss#2241 (closed)