Problems when setting safe_labels = {} about lightspeed.nvim HOT 1 CLOSED

There is no bug here: ,/; do not behave like , and ; in vanilla Vim. You can only go back to the "start point" (the first target you reached with ;), but not beyond - it is like pushing and popping from a stack.

The reason why it works like this is briefly mentioned in the Readme (;/, works the same way as S/F/T):

S, F and T, on the other hand, always revert the previous repeat. Note that in the case of T (or X, if mapped), this results in a different, and presumably more useful behaviour than what you are used to in clever-f and Sneak: it does not repeat the search in the reverse direction, but puts the cursor back to its previous position - before the previous match -, allowing for an easy correction when you accidentally overshoot your target.

What this means in practice, regarding your example:

If you have safe labels, you will auto-jump to the first target, and that will be the start point for ;/,. If you set safe_labels = {}, you will not auto-jump, so if you press a label, then you actually exit the plugin. If you jumped to the second match (by selecting the label f), then the match after that will be the first one that ; finds (the one in log.DebugLevel on line 12), and thus the "reference" point for the ;/, sequence.

from lightspeed.nvim.