Created attachment 169868 [details] video for the bug SUMMARY In KDE Calculator version 24.05.0, pressing the equal sign followed by an operation like `*2` does not incorporate the existing calculation result into the new calculation, resulting in an "Input Error" message. STEPS TO REPRODUCE 1. Open KDE Calculator. 2. Perform a calculation, such as `5 + 5`. 3. Press the equal sign (`=`). 4. Press `*2=`. OBSERVED RESULT The calculator displays an "Input Error" message, and the existing result from the previous calculation is not included in the new operation. EXPECTED RESULT The existing calculation result should be incorporated into the new operation. For example, after pressing `=` following `5 + 5`, the calculator should show `10`. Then pressing `*2` should result in `20`. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch Linux KDE Plasma Version: 6.0.5 KDE Frameworks Version: 6.2.0 Qt Version: 6.7.1 ADDITIONAL INFORMATION LANG=zh_CN.UTF-8
*** This bug has been marked as a duplicate of bug 487566 ***