cage 0.2 depends on both wlroots 0.18 and 0.17

Description:

pacman -S cage
...
Package (5)            New Version  Net Change  Download Size

extra/libliftoff       0.5.0-1        0.04 MiB       0.02 MiB
extra/wlroots          0.18.1-1       1.41 MiB       0.43 MiB
extra/wlroots0.17      0.17.4-3       1.37 MiB       0.42 MiB
extra/xcb-util-errors  1.0.1-2        0.04 MiB       0.01 MiB
extra/cage             0.2.0-1        0.06 MiB       0.02 MiB

Probably because cage depends on libwlroots but wlroots-0.18 provides libwlroots-0.18.so and wlroots0.17 provides libwlroots.

I force-removed wlroots0.17 and cage still works.