Maintainers for qscintilla2 are Debian Python Team <team+python@tracker.debian.org>.
You may want to refer to the following individual bug pages: libqscintilla2-designer, libqscintilla2-doc, libqscintilla2-qt4-13, libqscintilla2-qt4-13-dbg, libqscintilla2-qt4-designer, libqscintilla2-qt4-designer-dbg, libqscintilla2-qt4-dev, libqscintilla2-qt4-l10n, libqscintilla2-qt5-13, libqscintilla2-qt5-13-dbg, libqscintilla2-qt5-15, libqscintilla2-qt5-designer, libqscintilla2-qt5-designer-dbg, libqscintilla2-qt5-dev, libqscintilla2-qt5-l10n, libqscintilla2-qt6-15, libqscintilla2-qt6-designer, libqscintilla2-qt6-dev, libqscintilla2-qt6-l10n, libqt5scintilla2-designer, pyqt4.qsci-dev, pyqt5.qsci-dev, pyqt6.qsci-dev, python-pyqt5.qsci, python-pyqt5.qsci-dbg, python-qscintilla2, python-qscintilla2-dbg, python3-pyqt4.qsci, python3-pyqt4.qsci-dbg, python3-pyqt5.qsci, python3-pyqt5.qsci-dbg, python3-pyqt6.qsci.
You might like to refer to the qscintilla2 package page, or to the Package Tracking System.
If you find a bug not listed here, please report it.