Recursively filtering bases

Filter for notes that have a…

Link to the current file:

file.hasLink(this)

Link to a link to the current file:

file.links.filter(value.asFile().hasLink(this))

Third-degree link to the current file:

file.links.filter(value.asFile().links.filter(value.asFile().hasLink(this)))

Fourth-degree link to the current file:

file.links.filter(value.asFile().links.filter(value.asFile().links.filter(value.asFile().hasLink(this))))