Is overtaking a cyclist forbidden in this situation?

Why?

The junction shown does not prohibit overtaking this cyclist, because the junction restriction applies to overtaking motor vehicles. You may overtake the bicycle with particular care and a safe lateral clearance of at least 1 metre. First make sure you have enough visibility and space to complete the manoeuvre safely.

art. 24 ust. 1, ust. 2 i ust. 7 pkt 3 Prawa o ruchu drogowym