Enhancement: support delete originals after split / merge (#6935)

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Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>

src-ui/src/app/components/document-detail/document-detail.component.spec.ts

@@ -1099,7 +1099,7 @@ describe('DocumentDetailComponent', () => {
     expect(req.request.body).toEqual({
       documents: [doc.id],
       method: 'split',
-      parameters: { pages: '1-2,3-5' },
+      parameters: { pages: '1-2,3-5', delete_originals: false },
     })
     req.error(new ProgressEvent('failed'))
     modal.componentInstance.confirm()