$ git clone -n https://src.fedoraproject.org/rpms/glib2.git /var/lib/mock/f37-build-638425-70227/root/chroot_tmpdir/scmroot/glib2
Cloning into '/var/lib/mock/f37-build-638425-70227/root/chroot_tmpdir/scmroot/glib2'...
$ git reset --hard af8ca54e28ed228bf63072757ff2378bf80e42c0
HEAD is now at af8ca54 Rebuild