Package: gitlab Version: 13.4.7-2 Severity: important Control: block -1 by 977781 Control: forwarded -1 https://github.com/yarnpkg/berry/issues/2258
yarnpkg is currently broken in unstable. A work around is to update to yarn 2, but its node-modules plugin refuse to work with node_modules as a symbolic link.
I have opened an upstream issue https://github.com/yarnpkg/berry/issues/2258
