If we don’t executePendingTransactions we might still access the overview fragment
while a replacement operation is in the works. This will lead to two
conversationfragments opening.
This reverts commit e528b9f5df59f7b49ae18c73396bd56525493e28.
I was originally convinced by the argumentation (quote always in same place)
but testing this out for a while really seems to break 'last correct' for me.
I use that way more frequently that quote