acb24ced07
QSettings encodes QVariants as @Type(data) strings. If that data contains a null-byte, we write the string as UTF-8 encoded CFData. When reading it back we look for a @ prefix, and then pass it as UTF-8 through stringToVariant. The problem arises then the user writes raw QByteArrays with a @ prefix. We can detect this situation by checking the result of stringToVariant, and if it's just a simple conversion of the string into a QVariant, we know that stringToVariant hit its fallback path due to not finding any embedded variants. If that's the case, we return the raw bytes as a QByteArray. Change-Id: I4ac5c35d0a6890ebea983b9aca0a3a36b0143de2 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> (cherry picked from commit 3eac6079d9a02fbedd3740186eaaf21134dc45c2) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>