Loading a variable library deleted every variable of the document with its
bindings, including a text variable of the same name that the library
declares. Text made dynamic and then given a library's variable name lost its
binding, so selecting the library's data sets changed nothing. Such a
variable now stays bound, and the library's data sets change its text; other
variables are deleted as before.
dataset.import and variable.loadLibrary added an undo step, cleared Redo
and marked a saved document modified even when the variables and data
sets came out as they were, such as the same CSV or library loaded
again. Both now build the new variables on a copy and record a step only
when it differs. variable.loadLibrary's params text and docs/mcp.md say
so.
Undo, Redo and a canceled undo group put back an earlier document but
left the Variables panel highlight as it was. After renaming the
highlighted variable and undoing, the highlight still named the new
name: a variable defined later under that name showed highlighted
without a click, and Delete removed it.
Each of these paths now clears a highlight whose variable the restored
document does not define, as Delete Variables and Load Variable Library
already did.
Don Omondi