rpmbuild is incorrectly being called with --noprep instead of --short-circuit, which causes it to trash %_builddir and then go straight to executing %build on an empty source.
--stage=i= and i+ work correctly.
This seems to have been caused by commit e640c304248e6105a360e64d013190130fc3e890 (but i have not checked whether reverting it fixes the problem)
rpmbuild is incorrectly being called with --noprep instead of --short-circuit, which causes it to trash %_builddir and then go straight to executing %build on an empty source.
--stage=i= and i+ work correctly.
This seems to have been caused by commit e640c304248e6105a360e64d013190130fc3e890 (but i have not checked whether reverting it fixes the problem)