ADC gridding vs appending end time mismatch

Easy to reproduce:

system_specs = cmrseq.SystemSpec(max_grad=Quantity(80, "mT/m"), max_slew=Quantity(200., "mT/m/ms"), grad_raster_time=Quantity(0.01, "ms"), rf_raster_time=Quantity(0.01, "ms"), adc_raster_time=Quantity(0.01, "ms"))

delay = cmrseq.bausteine.Delay(system_specs=system_specs, duration=Quantity(0.1, 'ms'))

adc = cmrseq.bausteine.SymmetricADC(system_specs=system_specs, num_samples=10, duration=Quantity(2, 'ms'), delay=Quantity(0, 'ms'))

seq = cmrseq.Sequence([delay], system_specs=system_specs)

seq.append(adc_block90)

seq.append(delay)

time, rf_grid, grad_grid, adc_on_grid = cmrseq.utils.grid_sequence_list([seq], force_uniform_grid=False)

Error will be with out of bounds index.

It seems that there is some mismatch between how blocks are appended and how the adcs are gridded using _grid_single_adc_block

_grid_single_adc_block adds one extra adc dwell time at the end after the last sample, however when appending, the end time of the adc events is the sample time of the last sample. If the dwell time that was added (in this example it is 0.4ms) is less than the remaining gradients in the sequence (this case 0.1ms delay) then this error occurs