Description of the Issue

A search, using the Find in these found results... option, does not match anything if a Find All in Current Document was performed on the non-saved file new 1, exclusively !

Steps to Reproduce the Issue

1. Start Notepad++

2. Click 3 times on the Ctrl + N shortcut => The 3 tabs new 1 , new 2 and new 3 appear

3. Open the well-known file License.txt

4. Copy all its contents and paste it into each non-saved file

5. Select the new 3 file, first

6. Open the Find dialog ( Ctrl + F )

7. SEARCH your

8. Tick the two options Match whole word only and Wrap around, only

9. Select the Normal search mode

10. Click on the Find All in Current Document button

=> The Find result appears with the message Search "your" (14 hits in 1 file of 1 searched)

7. Right-click in the Find result panel

8. Select the Find in these found results... option

9. SEARCH that

10. Tick the two options Search only in found lines and Match whole word only

11. Select the Normal search mode

12. Click on the Find All button

=> A second Find result panel appears with the message Search "that" (6 hits in 1 file of 1 searched) - Line Filter Mode: only display the filtered results ( OK )

13. Click on the X button to close the second Find result panel

14. Right-click in the main Find result panel

15. Select the Clear All option to get an empty panel

16. Select the new 2 file and repeat the steps 7. to 15.

=> Again, you correctly get the message Search "that" (6 hits in 1 file of 1 searched) - Line Filter Mode: only display the filtered results

17. Select the new 1 file and repeat the steps 7. to 15.

Actual Behavior

=> This time, the search in Find in these found results... panel does not match anything and you get the message Search "that" (0 hits in 0 files of 1 searched) - Line Filter Mode: only display the filtered results

Any other search, from the main Find result panel, relative to new 1 file, exclusively , with the Find in these found results... option, wil not output any match, leading to the message Search "....." (0 hits in 0 files of 1 searched) - Line Filter Mode: only display the filtered results, whatever the string searched !

Expected Behavior

The results, involving the new 1 file, should be identical to the other non-saved files new 2 and new 3, as these files contain, all, the same copy of the License.txt file !

Debug Information

Notepad++ v7.9.1 (32-bit)
Build time : Oct 27 2020 - 16:07:12
Path : D:@@\791\notepad++.exe
Admin mode : OFF
Local Conf mode : ON
OS Name : Microsoft Windows XP (32-bit)
OS Build : 2600.0
Current ANSI codepage : 1252
Plugins : mimeTools.dll NppConverter.dll NppExport.dll

Best Regards

guy038