Spreadsheet: Import data with different header leads to wrong names in the spreadsheet

Steps to reproduce

1. New Project
2. Import csv1_new.csv
3. Import csv2_new.csv and replace data in spreadsheet

Expected

Names are imported correctly

Current

csv1_new.csv

csv2_new.csv

Can be also reproduced with:

csv1_new.csv

csv2_new.csv

Debug build exportArtifacts
Jan 23 2023, 20:30:59
System: Manjaro Linux
Locale: German,Germany (Decimal point ',', Group separator '.'
Number settings: Decimal point ',', Group separator '.', Exponential 'e', Zero digit '0', Percent '%', Positive/Negative sign '+'/'-' (Updated on restart)
Architecture: x86_64-little_endian-lp64
Kernel: linux 5.15.85-1-MANJARO
C++ Compiler: Clang 14.0.6
C++ Compiler Flags: -DQT_QML_DEBUG -fno-operator-names -fno-exceptions -Wno-gnu-zero-variadic-macro-arguments -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wnon-virtual-dtor -Woverloaded-virtual -Werror=return-type -Werror=init-self -Wvla -Wdate-time -fdiagnostics-color=always -D_GNU_SOURCE -Wall -Wextra -Wundef -Wpointer-arith -Wunreachable-code -Wunused -Wdeprecated-declarations -fno-omit-frame-pointer -fstack-protector -fexceptions -std=c++11 -O0 -Wcast-align -Wswitch-enum -fvisibility=default -pedantic -Wzero-as-null-pointer-constant