Unknown issue with forward dump

[oscarbates]

Files in

1. name-Acquisitions-Empty.h5
2. name-Geometry.h5
3. name-Vp.h5

Process:

1. Load all files.
2. Alter input wavelet using
   for shot in problem.acquisitions.shots:
shot.wavelets.data[:] = wavelets.tone_burst(f_centre, n_cycles, time.num, time.step)
3. Run forward

Bug
name-Acquisitions.h5 contains the original wavelets from the name-Acquisitions-Empty.h5 file, not the altered wavelets

This does not happen if forward(..., dump=False) and name-Acquisitions.h5 is dumped manually after the forward.