Specific URL is the first autocomplete option forever
I'm using epiphany 3.31.2-11-g474e55d7 with WebKitGtk+ 2.22.3 from gnome-nightly's flatpak, although it has been happening already for some previous versions.
Eventually, I visited the following page: https://online.abacus.coop/es/tecnologia/cine-y-musica/musica.html
It got stored in the history so it is used for autocomplete. Now, anything I type in the URL entry gets autocompleted with this URL as first option, no matter what.