No such thing as too much water, the key is to make sure the moisture added is evaporated entirely by next time you water.
Creating a negative pressure condition within the tent.
Cannabis Plants have very good early warning systems In place to prevent underwatering.
Whenever water becomes scarce the plant wilts, closes its stomata to prevent any further loss of moisture.
Given average conditions you have about 24 hours of " looking wilted" before actual lasting damage is done.
So as long as you provude water within 24 hours of clear and obvious drooping if done correctly can actually provide beneficial responses from the stress.
A plant doesn't droop its leaves because it's ran out of water but it's getting low.