ml unit annotation breaks GUI in one special case
tested release 1.3.1 for update found this bug:
```python
apparent_catalyst_volume = Quantity(
type=np.dtype(np.float64),
unit=('ml'),
a_eln=ELNAnnotation(component='NumberEditQuantity', defaultDisplayUnit='ml'))
```
works
```python
apparent_catalyst_volume = Quantity(
type=np.dtype(np.float64),
unit=('ml'),
a_eln=ELNAnnotation(component='NumberEditQuantity'))
```
breaks the gui relates to #1929
issue