How to Export routes from one vrf to other vrf in same node

[tanmay910]

[global]
  [global.config]
    as = 100
    router-id = "1.1.1.1"

[[neighbors]]
  [[neighbors.afi-safis]]
    [neighbors.afi-safis.config]
      afi-safi-name = "l3vpn-ipv4-unicast"
  [neighbors.config]
    neighbor-address = "2.2.2.2"
    peer-as = 100
  [neighbors.transport]
    [neighbors.transport.config]
      local-address = "1.1.1.1"

[[vrfs]]
  [vrfs.config]
    name = "vrf1"
    rd = "100:1"
    import-rt-list = ["100:1"]
    export-rt-list = ["100:3"]

[[vrfs]]
  [vrfs.config]
    name = "vrf2"
    rd = "100:2"
    import-rt-list = ["100:2", ]
    export-rt-list = ["100:3"]

[[vrfs]]
  [vrfs.config]
    name = "vrf3"
    rd = "100:3"
    import-rt-list = ["100:3"]
    export-rt-list = ["100:1", "100:2", "100:3"]

I want to export all routes learned by vrf1 to vrf3, without modifying the existing import or export Route Targets (RTs).

Currently, if I add a static route in vrf1, it gets exported to vrf3 as expected (because it originates from vrf1).

However, routes learned by vrf1 from its BGP peers or other VRFs are not being exported to vrf3.

Can someone help me figure out how to export both local and learned routes from vrf1 to vrf3 without changing the RT configuration?

FYI i am using gobgpd version 3.37.0

[tanmay910]

@jdewald @fragmede @rubenk @matthubb @amanshaikh75 @fujita
any help appreciated