SVGHMI: Fix again clone unlinking, and this time add an "original" attribute to track the id of the original object before unlinking.
// widget_list.ysl2
template "widget[@type='List' or @type='TextStyleList']", mode="widget_defs" {
param "hmi_element";
| items: {
foreach "$hmi_element/*[@inkscape:label]" {
| «func:escape_quotes(@inkscape:label)»: "«@id»",
}
| },
}