[opensuse-buildservice] Package showing "unresolvable" for Tumbleweed because "nothing provides libcap"

Dear all, I got some packages that I have not touched in a longer time, but which got an update recently. I saw no changes to the spec (apart from mine) but suddenly they are showing "unresolvable" because "nothing provides libcap". Have I missed a change recently? I have no clue, but it seems libcap is still available for Tumbleweed: https://build.opensuse.org/package/show/openSUSE:Factory/libcap The packages are here:

https://build.opensuse.org/project/monitor/home:ojkastl_buildservice:LXC_Van...

Thanks in advance. Puzzled, Johannes