$ git clone -n https://git.cclinux.org/stage/rpms/gtk-vnc.git /mnt/compose/mock/dist-circle8-build-112779-71456/root/chroot_tmpdir/scmroot/gtk-vnc
Cloning into '/mnt/compose/mock/dist-circle8-build-112779-71456/root/chroot_tmpdir/scmroot/gtk-vnc'...
$ git fetch origin 26e1d10e6ed184a187d2e44b33f7207479344014:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/gtk-vnc
 * [new ref]         26e1d10e6ed184a187d2e44b33f7207479344014 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 26e1d10 import gtk-vnc-0.9.0-3.el8