Capybara::Cuprite::InvalidSelector

[momolog]

When I try to do

find_link 'Buchen', exact_text: true

in Capybara I get

Capybara::Cuprite::InvalidSelector: Browser raised error trying to find xpath: "(.//a[./@href][((((./@id = 'Buchen') or (normalize-space(string(.)) = 'Buchen')) or (./@title = 'Buchen')) or .//img[(./@alt = 'Buchen')])])[]"
from /Users/aljoscha/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/cuprite-0.15/lib/capybara/cuprite/browser.rb:201:in `rescue in find_all'
Caused by Ferrum::JavaScriptError: Error
    at Cuprite.find (<anonymous>:34:15)
    at <anonymous>:1:31
from /Users/aljoscha/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/ferrum-0.14/lib/ferrum/frame/runtime.rb:138:in `handle_error'

This seems to be a bug, right?