[R24.5][Bug] Available parts filter is falsely reset

[ds-crehm]

Description

Happened on E2E-A:
When creating a notification directly, initially the type investigation is selected. This means, that the table of available parts is filtered to only show supplier parts, because an investigation may not have own parts.
However, when adding a part and then removing it again, the filter is not set anymore. Now all of the parts are shown again (including own parts). Then the user can select own parts and create an investigation with own parts. This investigation can even be successfully sent.

Current behaviour

When creating a notification from the Quality notifications tab directly, it looks like this initially:

It only shows supplier parts in the second table.
Then I add one of the parts:

The selected part is removed from the lower table and added to the upper table.
When I remove the selected part from the upper table again, the filter in the lower table is removed and all parts are shown:

Expected behavior

During the creation of a notification, when an alert / investigation is selected, only the relevant available parts are shown at all times.

Steps to reproduce the Bug

1. Go to quality notification tab
2. Click "Create quality notification"
3. Add part from lower table
4. Remove the same part again

[ds-crehm]

Tested on E2E-A & E2E-B:
Works as expected now. Table is always filtered for appropriate parts depending on the type of notification (alert -> own parts, investigation -> supplier parts). When adding / removing parts, the filter is unchanged.
Ready for review.

[mkanal]

LGFM. PO acceptance in behalf of @jzbmw