Package: node-markdown-it,libjs-markdown-it Severity: important node-markdown-it installs /usr/share/javascript/markdown-it as a symbolic link whereas libjs-markdown-it installs the same path as a directory. What happens there depends on the unpack order. Consider installing, libjs-markdown-it, then installing node-markdown-it, then removing libjs-markdown-it. At that point /usr/share/javascript/markdown-it becomes an empty directory and node-markdown-it is likely broken.
Helmut