Strikeout and underlined text problem (CN 2.3 Beta 1)

Strikeout reproduce:

1. Make some numbered list
2. Strikeout some of the numbered list string in editor window, press ОК

Result: in main window number of position is strikeout too. And if open this note in editor again - number of next position is strikeout. If then start to selecting text in editor window it acts strange: sometimes strikeout of next position disappearing, sometimes not.  

Underline reproduce:

1. Make some numbered list
2. Underline some of the numbered list string in editor window, press ОК

Result: In editor window and main window number of position is underlined too. In editor window number of position is highlighted with blue (like a link). Rarely in editor window strings are underlining correctly, but in main window the problem remains.