$ git clone -n https://src.fedoraproject.org/rpms/rust-gdk-pixbuf0.17.git /var/lib/mock/f41-build-side-1-2907285-34727/root/chroot_tmpdir/scmroot/rust-gdk-pixbuf0.17
Cloning into '/var/lib/mock/f41-build-side-1-2907285-34727/root/chroot_tmpdir/scmroot/rust-gdk-pixbuf0.17'...
$ git fetch origin d395283e056832eed4c66fd4fc8bd8c2bd4cff8f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gdk-pixbuf0.17
 * [new ref]         d395283e056832eed4c66fd4fc8bd8c2bd4cff8f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d395283 compat package no longer needed