$ git clone -n https://src.fedoraproject.org/rpms/libappstream-glib.git /var/lib/mock/f31-build-44075-25875/root/thebuilddir/tmp/scmroot/libappstream-glib
Cloning into '/var/lib/mock/f31-build-44075-25875/root/thebuilddir/tmp/scmroot/libappstream-glib'...
$ git reset --hard e4924c580163a624138bfd2fc780ef11562a27b4
HEAD is now at e4924c5 Rebuild for RPM 4.15