unclear nested in reading

[lueck]

The apparatus entry for <unclear> nested in <rdg> is broken: If only a part of the variant reading is unclear, the whole reading is told to be unclear.

Entry should be: lemma ] vara varb[,] (varab unclear), siglum
where there's not doubt about vara, but varb is unclear.

Examples from ALEA project:

• BBlam44, v15, ms T
• BAlam104
• BAra154, ms QH