general-align problem with 2.21.0

[Menu Jacques]

Hello folks,

Doing a ‘git pull’ on my LilyDev 4 virtual machine and building Lily produced a 
2.21.0 version, that rejects:


\version "2.21.0"

P_POne_Staff_One_Voice_One = \relative c' {
  \tempo \markup {
    \concat {
      (
         "Allegretto vivace"\smaller \general-align #Y #DOWN \note #"4." #UP
        =
        126
      )
    }
  }
  c2.
}

{
  \P_POne_Staff_One_Voice_One
}


with error message:


Starting lilypond 2.21.0 [Untitled]...
Processing `/tmp/frescobaldi-_MMpyy/tmpsaOidZ/document.ly'
Parsing...
/tmp/frescobaldi-_MMpyy/tmpsaOidZ/document.ly:9:68: error: wrong type for 
argument 1.  Expecting duration, found "4."
         "Allegretto vivace"\smaller \general-align #Y #DOWN \note 
                                                                   #"4." #UP
/usr/local/share/lilypond/2.21.0/scm/lily.scm:1106:21: In procedure reverse! in 
expression (ly:parse-file file-name):
/usr/local/share/lilypond/2.21.0/scm/lily.scm:1106:21: Wrong type argument in 
position 1: (1 "4." . #f)
Exited with return code 1.


The same is in the LPNR and is accepted alright with previous versions, though.

HTH!

JM