vanyasem [1] filed a orphan request for bumpversion [2]:
The package is broken for quite a while
[1] https://aur.archlinux.org/account/vanyasem/ [2] https://aur.archlinux.org/pkgbase/bumpversion/
Request #10716 has been accepted automatically by the Arch User Repository package request system:
The user Foxboron disowned the package.
aur-requests@lists.archlinux.org