Create a new calc. Type anything. Save the file. The save button is disabled. Freeze the top row (select the 2nd row and use the menu Window->Freeze) The save button is still disabled. It's the same as the closed bug: https://bugs.freedesktop.org/show_bug.cgi?id=33688 except it is an issue. The workaround doesn't mean it should be closed.
*** This bug has been marked as a duplicate of bug 33688 ***
*** This bug has been marked as a duplicate of bug 61060 ***