xbps_register_pkg: also copy the provides object for virtual packages.
xbps_register_pkg: also copy the provides object for virtual packages.

stpx/xbps,ebfe/xbps,stpx/xbps,stpx/xbps,ebfe/xbps,datenwolf/xbps,ebfe/xbps,datenwolf/xbps,datenwolf/xbps