render a cell's font incorrectly with conditional formatting

Steps to Reproduce

1. import the attached file
2. check the font at A1

Current Result

calibri

Expected Result

arial

Debug Information

• the font at A1 should be "impact".

Root Cause

io.keikai.range.impl.StyleUtil

public static SFont getFontStyle(SBook book, SCellStyle cellStyle, SCellStyle tbCellStyle, SConditionalStyle cdStyle) {
		if (cdStyle != null && cdStyle.getFont() != null) {
			return cdStyle.getFont();
		}
...
}

It always uses conditional formatting's font instead of the cell's font.