Options for some values in Processing are not saved after close window

[geofausto]

What is the bug or the crash?

Some Processing configuration options will not be saved after changing default value. The problem persists in different profiles. These lines in QGIS.ini always revert back to -1 value after close QGIS:

[Processing]
Configuration\DefaultOutputRasterLayerExt=-1
Configuration\DefaultOutputVectorLayerExt=-1
Configuration\TEMP_PATH2=

Steps to reproduce the issue

1. Open Processing options (via menu Setting > Option or icon inside Processing toolbox panel)
2. Change deafult value for these options:
   • Default output raster layer extension (combobox)
   • Default output vector layer extension (combobox)
   • Override temporary output folder path (path string)
3. Close Processing options
4. Restart QGIS
5. Check values changed in Processing options. Returns last value from combobox options or empty field.
6. Check lines QGIS.ini file

Default:

After change values:

Versions

QGIS version	3.30.2-'s-Hertogenbosch	QGIS code revision	0992b53
Qt version	5.15.3
Python version	3.10.6
GDAL/OGR version	3.4.1
PROJ version	8.2.1
EPSG Registry database version	v10.041 (2021-12-03)
GEOS version	3.10.2-CAPI-1.16.0
SQLite version	3.37.2
PDAL version	2.3.0
PostgreSQL client version	unknown
SpatiaLite version	5.0.1
QWT version	6.1.4
QScintilla2 version	2.11.6
OS version	Linux Mint 21.1
Active Python plugins
grassprovider	2.12.99
processing	2.12.99
db_manager	0.1.20
MetaSearch	0.3.6

Supported QGIS version

• I'm running a supported QGIS version according to the roadmap.

New profile

• I tried with a new QGIS profile

Additional context

No response