$ git clone -n https://src.fedoraproject.org/rpms/xorg-x11-drv-fbdev.git /var/lib/mock/f41-build-874449-16213/root/chroot_tmpdir/scmroot/xorg-x11-drv-fbdev
Cloning into '/var/lib/mock/f41-build-874449-16213/root/chroot_tmpdir/scmroot/xorg-x11-drv-fbdev'...
$ git fetch origin 31a8e84ff00f4d67197fc84d8926e779b80a4971:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xorg-x11-drv-fbdev
 * [new ref]         31a8e84ff00f4d67197fc84d8926e779b80a4971 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31a8e84 Eliminate use of obsolete %patchN syntax (#2283636)