Isaiah 52:12 (King James Bible) for ye shall not go out with haste nor go by flight
The 1905 LDS edition accidentally omitted the repeated go in this passage (replacing “nor go by flight” with “nor by flight”). Two subsequent LDS editions followed this shorter reading, the 1907 vest-pocket edition (perhaps independently) and the 1911 edition. The copytext for the 1911 LDS edition was a printed copy deriving from the 1905 plates that had been corrected (in 1907) for the third printing of the 1905 edition. In any event, the 1920 LDS edition restored the repeated go. The corresponding King James text has the go, as will the critical text.
Summary: Maintain in 3 Nephi 20:42 the repeated go in “ye shall not go out with haste nor go by flight”, the reading of both 𝓟 and the 1830 edition (as well as the reading of the corresponding passage in Isaiah 52:12).