tvl.el: magit-read-cl always returns nil in //users/sterni/emacs

M-x eval-expression RET (magit-read-cl "test" "origin") RET always returns nil for me which breaks CL checkout in magit completely. This seems to be caused by magit-completing-read throwing away the necessary text properties looked up for the return value, possibly affects just me because magit-completing-read behaves differently depending on what kind of packages are loaded.