Workaround solution:
Step 1. Launch EmEditor without any file
Step 2. Save as “Test-1.txt” (empty file)
Step 3. Open “FILE-A.txt”
Step 4. Save as “Test-1.txt” and overwrite the original one.
Step 5. Switch to original Tab.
Step 6. Click “Reload”
Done.
BTW, if disable “Enable Tabs” function, it can edit the same file in the several EmEditor windows.
