Enable recursive filtering and keeping children, in all QSortFilterPr… #400

Job	Run time
build (ubuntu-latest, ci-dev-client-only-qt5, 5.15, x86_64, qt5)	6m 44s
build (ubuntu-latest, ci-dev-client-only-qt6, 6.5.*, qtshadertools qtscxml, qt6)	9m 11s
build (ubuntu-latest, ci-dev-client-and-ui-qt5, 5.15, x86_64, qt5)	10m 41s
build (ubuntu-latest, ci-dev-client-and-ui-qt6, 6.5.*, qtscxml, qt6)	10m 35s
build (ubuntu-latest, ci-dev-probe-only-qt5, 5.15, x86_64)	6m 11s
build (ubuntu-latest, ci-dev-probe-only-qt6, 6.5.*, qtscxml)	9m 2s
build (windows-latest, ci-dev-client-only-qt5, 5.15, x86_64, qt5)	6m 39s
build (windows-latest, ci-dev-client-only-qt6, 6.5.*, qtshadertools qtscxml, qt6)	8m 48s
build (windows-latest, ci-dev-client-and-ui-qt5, 5.15, x86_64, qt5)	10m 12s
build (windows-latest, ci-dev-client-and-ui-qt6, 6.5.*, qtscxml, qt6)	12m 44s
build (windows-latest, ci-dev-probe-only-qt5, 5.15, x86_64)	7m 38s
build (windows-latest, ci-dev-probe-only-qt6, 6.5.*, qtscxml)	8m 46s
build (macos-latest, ci-dev-client-only-qt5, 5.15, x86_64, qt5)	7m 8s
build (macos-latest, ci-dev-client-only-qt6, 6.5.*, qtshadertools qtscxml, qt6)	4m 55s
build (macos-latest, ci-dev-probe-only-qt5, 5.15, x86_64)	5m 3s
build (macos-latest, ci-dev-probe-only-qt6, 6.5.*, qtscxml)	4m 38s
	2h 8m 55s

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