Multiple kdesrc-buildrc files use same kdesrc-build-data

When having two kdesrc-buildrc files, e.g. .config/kdesrc-buildrc (for Qt5) and .config/kdesrc-buildrc6 (for Qt6) then they both seem to write stuff to .local/state/kdesrc-build-data.

This seems to cause issues. For example when running the Qt6 config after having used the Qt5 config then kdesrc-build tells me build dirs are being migrated, which they shouldn't.

This can be worked around by having the rc file in another directory. For example when placing the Qt6 rc file in kf6/.kdesrc-buildrc then data will be saved to kf6/.kdesrc-build-data, avoiding the clash