Work around an upstream Qt crash when a relation editor combobox leads to its attribute item to be hidden

[nirvn]

Fixes https://github.com/opengisch/QField/issues/5766 in a less intrusive fashion than patching QtDeclarative source code for now.

It's definitively a workaround here, but I think we can be happy with it for now.

Discussion upstream continues here: https://bugreports.qt.io/browse/QTBUG-130819

[qfield-fairy]

🎉 Ta-daaa, freshly created APKs are available for 741ab749a682f8654d52b536baeb859a70bae14d: arm64-android

Other architectures

- [arm-neon-android](https://qfieldapks.sos-ch-dk-2.exoscale-cdn.com/ci-builds/qfield-dev-5800-03bc5962f9da8d869ac5f60bf8e55b0c2f6bdbb0-android-arm-neon.apk) - [x64-android](https://qfieldapks.sos-ch-dk-2.exoscale-cdn.com/ci-builds/qfield-dev-5800-03bc5962f9da8d869ac5f60bf8e55b0c2f6bdbb0-android-x64.apk) - [x86-android](https://qfieldapks.sos-ch-dk-2.exoscale-cdn.com/ci-builds/qfield-dev-5800-03bc5962f9da8d869ac5f60bf8e55b0c2f6bdbb0-android-x86.apk) - [**all access arm64-android**](https://qfieldapks.sos-ch-dk-2.exoscale-cdn.com/ci-builds/qfield_all_access-dev-5800-03bc5962f9da8d869ac5f60bf8e55b0c2f6bdbb0-android-arm64.apk) - [all access arm-neon-android](https://qfieldapks.sos-ch-dk-2.exoscale-cdn.com/ci-builds/qfield_all_access-dev-5800-03bc5962f9da8d869ac5f60bf8e55b0c2f6bdbb0-android-arm-neon.apk) - [all access x64-android](https://qfieldapks.sos-ch-dk-2.exoscale-cdn.com/ci-builds/qfield_all_access-dev-5800-03bc5962f9da8d869ac5f60bf8e55b0c2f6bdbb0-android-x64.apk) - [all access x86-android](https://qfieldapks.sos-ch-dk-2.exoscale-cdn.com/ci-builds/qfield_all_access-dev-5800-03bc5962f9da8d869ac5f60bf8e55b0c2f6bdbb0-android-x86.apk)