Not possible to empty the target ensemble field in esmda

[larsevj]

What happened? (You can include a screenshot if it helps explain)

In the ESMDA panel in the ERT GUI it is not possible to completely empty the Target ensemble format field. Once you have removed the default value of default_%d it is automatically populated again.

What did you expect to happen?

Would expect to be able to remove the current value entirely before entering a new value.

steps to reproduce

ert gui poly.ert

-Choose ES MDA panel, and try to remove the default value in Target ensemble format field.

Environment where bug has been observed

• python 3.8
• python 3.9
• python 3.10
• python 3.11
• python 3.12
• macosx
• rhel7
• rhel8
• local queue
• lsf queue
• slurm queue
• openPBS queue
• used flag --enable-scheduler

[larsevj]

Also present on upcoming stable 2024.08.00

[larsevj]

The same issue is present for manual update and ensemble smoother