Germano Massullo wrote:
Before seeing this discussion I filled bugreport
FYI, there's an upstream fix for this one:
which should be backported to Fedora 29.
This is the fix for the annoying Kicker QML/model use-after-free bugs that
have been there for months. It's fixed in Plasma ≥ 5.15 and Plasma 5.12 LTS,
but Fedora 29 has Plasma 5.14.