Numbering subformulas broken?

Numbering subformulas broken?

[Procházka Lukáš Ing. - Pontex s. r. o.]

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Hello,

the following example (based on http://wiki.contextgarden.net/Math/Display#Automatic_Sub-Formula_Numbering ):

----
\starttext
   \startsubformulas[eq:1]
     \placeformula[eq:1a]
       \startformula
         c^2 = a^2 + b^2
       \stopformula

     \placeformula[eq:1b]
       \startformula
         c^2 = a^2 + b^2
       \stopformula

     \placeformula[eq:1c]
       \startformula
         c^2 = a^2 + b^2
       \stopformula
   \stopsubformulas

   Formula (\in[eq:1]) states the Pythagora's Theorem twice,
     once in (\in[eq:1a]) and again in (\in[eq:1b]) and \in[eq:1c].
\stoptext
----

has two faults:

- subformulas 1b and 1c are not numbered (obviously, references to them show "??"),
- vertical distance between 1c and 1b is somehow bigger that that between 1b and 1c.

How to fix it?

(Compiled with: ConTeXt  ver: 2015.07.28 19:12 MKIV beta  fmt: 2015.7.30  int: english/english.)

Best regards,

Lukas


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Ing. Lukáš Procházka | mailto:LPr@pontex.cz
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\starttext
  \startsubformulas[eq:1]
    \placeformula[eq:1a]
      \startformula
        c^2 = a^2 + b^2
      \stopformula

    \placeformula[eq:1b]
      \startformula
        c^2 = a^2 + b^2
      \stopformula

    \placeformula[eq:1c]
      \startformula
        c^2 = a^2 + b^2
      \stopformula
  \stopsubformulas

  Formula (\in[eq:1]) states the Pythagora's Theorem twice,
    once in (\in[eq:1a]) and again in (\in[eq:1b]) and \in[eq:1c].
\stoptext

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