replay: drop commits that become empty #927

Job	Run time
config	7s
win+VS build	0s
fuzz smoke test	1m 36s
win build	4m 57s
win+Meson build	4m 39s
osx-clang (macos-13)	5m 34s
osx-gcc (macos-13)	5m 52s
osx-reftable (macos-13)	5m 39s
osx-meson (macos-13)	5m 25s
static-analysis	5m 23s
linux-breaking-changes (ubuntu:rolling)	5m 12s
linux-reftable (ubuntu:rolling)	5m 11s
documentation	4m 14s
linux-meson (ubuntu:rolling)	5m 11s
linux-leaks (ubuntu:rolling)	5m 12s
linux-asan-ubsan (ubuntu:rolling)	5m 9s
linux-musl-meson (alpine:latest)	5m 9s
linux-reftable-leaks (ubuntu:rolling)	5m 12s
almalinux-8 (almalinux:8)	3m 33s
debian-11 (debian:11)	5m 11s
linux-TEST-vars (ubuntu:20.04)	5m 9s
fedora-breaking-changes-meson (fedora:latest)	5m 8s
sparse	1m 6s
linux-sha256 (ubuntu:rolling)	5m 11s
linux32 (i386/ubuntu:focal)	28s
win+VS test	0s
win+Meson test	0s
win test (3)	6m 4s
win test (2)	6m 9s
win test (7)	6m 5s
win test (6)	6m 6s
win test (8)	6m 5s
win test (4)	6m 11s
win test (0)	6m 6s
win test (5)	6m 5s
win test (1)	6m 4s
win test (9)	6m 7s
	2h 46m 30s

Provide feedback