BGP Soft Reset on IOS-XE

While trying to connect CSR1000v to Quagga I encountered the issue that I could not see received routes:

show ip bgp neighbors <neighbor_ip> received-routes
% Inbound soft reconfiguration not enabled on <neighbor_ip>

By default (it seems) that soft reconfiguration for inboud updates is not enabled (as it requires addtional memory resources to store received-routes in BGP Adj-RIB-in table) .

Configuration is as simple as:

neighbor <neighbor_ip> soft-reconfiguration inbound