$ git clone -n https://src.fedoraproject.org/rpms/qtscriptgenerator.git /var/lib/mock/f31-build-48918-27203/root/chroot_tmpdir/scmroot/qtscriptgenerator
Cloning into '/var/lib/mock/f31-build-48918-27203/root/chroot_tmpdir/scmroot/qtscriptgenerator'...
$ git reset --hard b16913a96ddaf25417f0721aa2e77e1904cd6cd9
HEAD is now at b16913a rebuild