Ticket #3874: Mike's suggestion: on Copy-Paste, JavaScript (JsScript) should be copied, even if it does not work due to the renaming.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34984 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #3874: limiting the changes of this ticket to only InsertFile case, general CopyPaste should (and could) not be affected

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34985 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e