On cancellation of non-adiabatic and off-shell effects in the antiproton annihilation in deuteron O. D. Dalkarov, V. A. Karmanov and E. A. Kupriyanova Eur. Phys. J. A, 59 6 (2023) 124 Published online: 09 June 2023 DOI: 10.1140/epja/s10050-023-01035-2