cubicweb #2037506 XML parsing error on vid notifications [resolved]

Example (sorry internal only): https://www.logilab.net/extranet/testexecution/188815?vid=notifications

prioritynormal
typebug
done in3.13.9
load0.100
load left0.000
closed by#48e1f7992507 [ibreadcrumbs] missing xml_escape on latest path part (usually view's title). Closes #2037506