$ git clone -n https://src.fedoraproject.org/rpms/rust-pango0.17.git /var/lib/mock/f40-build-2144435-50865/root/chroot_tmpdir/scmroot/rust-pango0.17
Cloning into '/var/lib/mock/f40-build-2144435-50865/root/chroot_tmpdir/scmroot/rust-pango0.17'...
$ git fetch origin adbd5e344d79ff0f3495281626e55220b5bec5c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pango0.17
 * [new ref]         adbd5e344d79ff0f3495281626e55220b5bec5c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at adbd5e3 Initial import (pango 0.17 compat package)