#980869 labplot: Plot can be created but not loaded after restart

Package:
labplot
Source:
labplot
Description:
interactive graphing and analysis of scientific data
Submitter:
James Youngman
Date:
2021-01-27 13:06:02 UTC
Severity:
important
#980869#5
Date:
2021-01-23 12:28:42 UTC
From:
To:
If you create a labplot project and add a plot to it (I specifically
added a linear regression plot) then you can work with the plot and so
forth immediately.  But, if you save the project and exit, the plot is
not restored on re-load.  Instead, this error message is given:

"The following problems occurred when loading the project file:\nline 7, column 21: unknown workbook element 'comment'\nline 59, column 97: unknown workbook element 'worksheet'\n"

Here's what appears in the terminal when I run labplot2 (of course
most of the user interaction happens in the application window):

$ labplot2 example-labplot.lml
AppDataLocation paths =  ("/home/james/.local/share/labplot2", "/usr/local/share/labplot2", "/usr/share/labplot2")
Icon theme search paths =  ("/usr/share/icons", ":/icons")
"0 instead of 1 arguments to message {Attribute '%1' missi...} supplied before conversion."
Column::handleFormatChange() mode = Numeric
Column::handleFormatChange() DONE
ColumnPrivate::replaceData()
"0 instead of 1 arguments to message {Attribute '%1' missi...} supplied before conversion."
Column::handleFormatChange() mode = Numeric
Column::handleFormatChange() DONE
ColumnPrivate::replaceData()
"0 instead of 1 arguments to message {Attribute '%1' missi...} supplied before conversion."
Column::handleFormatChange() mode = Numeric
Column::handleFormatChange() DONE
ColumnPrivate::replaceData()
"0 instead of 1 arguments to message {Attribute '%1' missi...} supplied before conversion."
Column::handleFormatChange() mode = Numeric
Column::handleFormatChange() DONE
ColumnPrivate::replaceData()
"0 instead of 1 arguments to message {Attribute '%1' missi...} supplied before conversion."
"The following problems occurred when loading the project file:\nline 7, column 21: unknown workbook element 'comment'\nline 59, column 97: unknown workbook element 'worksheet'\n"


The lines in the saved file around the line mentioned in the error
are:

     58             </spreadsheet>
     59             <worksheet creation_time="2021-23-01 12:17:17:866" name="Plot data from Spreadsheet">
     60                 <comment></comment>
     61                 <geometry x="0" y="0" width="1500" height="1500" useViewSize="0"/>

(obtained via `zless -N  +59  example-labplot.lml`)
#980869#10
Date:
2021-01-27 13:02:05 UTC
From:
To: