607801ec41
Backport #24069 by @sillyguodong In the component `DiffFileTree`,if don't update the value of the `diffEnd` in the callback of ajax request, click `Show More` btn will always return the same response, duplicate files are appended to the file list. Before: https://user-images.githubusercontent.com/33891828/231371188-82d169af-10bb-47e2-8aca-83ced2597f2d.mov After: https://user-images.githubusercontent.com/33891828/231369805-39a5a4d0-662c-4f08-bc5a-7d31e8782453.mov Co-authored-by: sillyguodong <33891828+sillyguodong@users.noreply.github.com>