All I can say is do not water the dormant bulbs. Allow the old bulbs to be so it can nature somewhat. The leaves WILL turn yellow and floppy. Bear with it--and alloww thw bulbs to grow new shoots from the old bulb.
This will give energy to the developing bulb. The yellowing leaves will go limp and soft and yellow. Allow this to fall off naturally. IF the yellowing bulbs get totally mushy-gently pull them off the old bulb.
Let the bulb rest a bit and cut the tops off gently. Read up--there is more advice than I can give you. In time--you will see new shoots coming up from the tops of the older bulbs. Relax! be patient and new shoots will come up as well as new leaves. Ask someone more experienced what they do re repotting. May be a bit tricky.
I am sure there are endcless advice on all this. Ask a gardener....
Gita