parsing of master configs merges multiple lines when subsequent ones start with whitespace
Not 100% sure if the title is accurate, but something certainly is off with how master configs are parsed. In the particular case encountered the relevant section of the config reads
plotter.style.showOverflow: true
# plotter.style.showUnderflow: true
plotter.style.drawData: false
# plotter.style.stackSignal: true
# plotter.normalize: true
# plotter.style.showOptScan: true
plotter.style.showTotalBkg: false
# plotter.errors.drawStatMC: false
The resulting config TQTaggable, when printed via the --print-config option of visualize.py (HWW flavor if relevant) seems to merge the non-commented lines into the value of the last one without a leading whitespace, i.e.: