$ git clone -n https://src.fedoraproject.org/rpms/xmobar.git /var/lib/mock/f41-build-840873-160994/root/chroot_tmpdir/scmroot/xmobar
Cloning into '/var/lib/mock/f41-build-840873-160994/root/chroot_tmpdir/scmroot/xmobar'...
$ git fetch origin 8ef68a3c9017c06f5d981fd3321b9546b75ca0fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmobar
 * [new ref]         8ef68a3c9017c06f5d981fd3321b9546b75ca0fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ef68a3 update to 0.48.1