Default shell handler acts strangely on Arch Pacman

[lschumm]

pacman acts strangely when invoking from ergonomica. For example, when running

sudo pacman -S noto-fonts-emoji

it first returns

[sudo] password for lschumm: 
resolving dependencies...
looking for conflicting packages...
:: Proceed with installation? [Y/n] 
Packages (1) noto-fonts-emoji-20170519-1

Total Download Size:   4.36 MiB
Total Installed Size:  4.93 MiB

No :: Proceed with installation? [Y/n] dialog is shown. After y is pressed, the downloading message is shown many times

downloading noto-fonts-emoji-20170519-1-any.pkg.tar.xz...
downloading noto-fonts-emoji-20170519-1-any.pkg.tar.xz...
downloading noto-fonts-emoji-20170519-1-any.pkg.tar.xz...
downloading noto-fonts-emoji-20170519-1-any.pkg.tar.xz...
downloading noto-fonts-emoji-20170519-1-any.pkg.tar.xz...

pacman is still functional (as in the package is installed, dependencies are properly resolved, etc.) but makes the interface less usable.

[lschumm]

I've seen this with connmanctl as well.

[lschumm]

This is essentially a problem with invoking interactive programs, which 2.1.0 fixes.