@VoiGAS for the EON, thats correct as they hold both tables. You can switch over or set Buhlmann as default where locks do not occur. But this does not downplay the fact that the ceiling was not followed and decompression was not finalized. This will have impact on further calculations as Buhllman uses its nitrogen buildup for further calculations. So better not to have these sitiations and allways follow the indicators on the computer to the letter.
Suunto does make the difference between voluntary or mandatory decompression stops. The RGBM lock only applies to the latter.
The screen showed in the link indicates a mandatory situation which is explained by Suunto… you get a warning to go to the ceiling of 6,5 meter. You need to do that within 3 minutes and sit out the deco as long as indicated by the EON, in this case 75 minutes which is far from beeing recreational…
If you fail - after warnings like the red ceiling indication and audible signal - to comply within 3 minutes, the computer locks for 48 hours. So you might say it indeed locks during the end of the dive.