I don't see a problem here. For example, a data consumer, the HSL/HRT Kuljettajaohjeet route visualization seems to use the track data[1]. The listing of nodes[2] (under the collapsible heading “Nodes”) shows the inner loop connects to the outer tracks – e.g. at node/10103343182.

[1] https://kartat.hsl.fi/kuljettaja/map/?1009N[dateBegin]=2024-06-03&1009N[dateEnd]=2050-12-31&1009T[dateBegin]=2025-11-03&1009T[dateEnd]=2026-05-10&1009[dateBegin]=2024-06-03&1009[dateEnd]=2026-04-06
[2] https://www.openstreetmap.org/way/1104098738/history/3