Fix in QUploaderBase (#4166)
Fix in QUploaderBase (#4166)

When $refs.input is not setted, __geFileInput returns this.$el.getElementsByClassName and that is an array. So, for instance when pickFiles method is called, it breaks when input.click() is fired
rstoenescu/quasar-framework,rstoenescu/quasar-framework,fsgiudice/quasar,quasarframework/quasar,quasarframework/quasar,pdanpdan/quasar,fsgiudice/quasar,quasarframework/quasar,rstoenescu/quasar-framework,pdanpdan/quasar,pdanpdan/quasar,quasarframework/quasar,fsgiudice/quasar,pdanpdan/quasar