I have found two issues with character alignment (see the following minimal example): one when \\ is used in a cell instead of \crlf, another one when \high or \low are used in a cell. Is it a bug?

\starttext

\setupTABLE[%

    aligncharacter=yes,

    alignmentcharacter=.,

    align=middle]

\subject{Reference}

\startTABLE

    \NC Foo\crlf bar    \NC \NR

    \NC 1.1             \NC \NR

    \NC 11.1            \NC \NR

\stopTABLE

\subject{Double backslash issue}

\startTABLE

    \NC Foo\\bar        \NC \NR

    \NC 1.1             \NC \NR

    \NC 11.1            \NC \NR

\stopTABLE

\subject{Sub/superscript issue}

\startTABLE

    \NC Foo\high{bar}   \NC \NR

    \NC 1.1             \NC \NR

    \NC 11.1            \NC \NR

\stopTABLE

\startTABLE

    \NC Foo\low{bar}    \NC \NR

    \NC 1.1             \NC \NR

    \NC 11.1            \NC \NR

\stopTABLE

\stoptext