sic nested in lemma with multiple variants in old ALEA encoding

[lueck]

The encoding <app><lem><sic>this lemma</sic><rdg>variant</rdg></app> should generate
lemma ] sic, variant, siglum.

At the moment, the sic occurs at the end.

Examples:

• BAlam116, v.18
• BAlam117, v.34