Bug#873869: deja-dup FTBFS with vala 0.36

[Adrian Bunk]

Source: deja-dup
Version: 34.3-1
Severity: serious
Tags: buster sid

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/deja-dup.html

...
build/1st/deja-dup-34.3/deja-dup/widgets/ConfigList.vala:336.39-336.42: error: Argument 1: Cannot pass value to reference or output parameter
      (model as Gtk.ListStore).remove(iter);
                                      ^^^^
[ 51%] Built target deja-dup-nautilus
/build/1st/deja-dup-34.3/deja-dup/widgets/ConfigLocation.vala:400.18-400.21: error: Argument 1: Cannot pass value to reference or output parameter
    store.remove(iter);
                 ^^^^
/build/1st/deja-dup-34.3/deja-dup/widgets/ConfigLocation.vala:405.22-405.29: error: Argument 1: Cannot pass value to reference or output parameter
        store.remove(sep_iter);
                     ^^^^^^^^
...