Super admin: Deleting the last taxon or header taxon using right click 'remove' does not work

[drummer83]

Description

Follow up of #9255.

Deleting the last taxon or header taxon using right click 'remove' does not work. After clicking 'update' and checking again, the deleted taxons are back.

Also related:

• Super admin: Renaming the header taxon not working when right clicking and selecting 'edit' #9385
• Super admin: Changing the order of taxons is not working #9386

Expected Behavior

Deleting taxons using right click 'remove' should remove the taxon.

Actual Behaviour

After clicking 'update' and checking again, the deleted taxons are back.

Steps to Reproduce

Header taxons:

1. As super admin go to admin/taxonomies.
2. Select the 'edit' button on the right of a taxon.
3. Right click on the header taxon and select 'remove'.
4. Confirm the dialog 'Are you sure?'.
5. Observe that there is a never ending 'Loading...' sign at the top of the page.
6. Click update.
7. Observe that the header taxon is still in the list.

Last taxon:

1. As super admin go to admin/taxonomies.
2. Select the 'edit' button on the right of a taxon.
3. Right click on one of the sub taxons and select 'remove'.
4. Confirm the dialog 'Are you sure?'.
5. Repeat 3. and 4. until there is only one sub taxon left.
6. Repeat 3. and 4. for the last sub taxon.
7. Observe that there is a never ending 'Loading...' sign at the top of the page.
8. Click update.
9. Select the 'edit' button on the right of the taxon again.
10. Observe that the last taxon is still in the list.

Animated Gif/Screenshot

See above.

Workaround

None.

Severity

bug-s5: we can live with it, only a few users impacted

Your Environment

• Version used: staged 68bd1df312014a0ffaef99d24a3d1ff2751cb546
• Browser name and version: Firefox 101.0.1 (64-Bit)
• Operating System and version (desktop or mobile): Desktop Ubuntu 20.04 LTS

Possible Fix