$ git clone -n https://src.fedoraproject.org/rpms/galculator.git /var/lib/mock/f41-build-1034958-18652/root/chroot_tmpdir/scmroot/galculator
Cloning into '/var/lib/mock/f41-build-1034958-18652/root/chroot_tmpdir/scmroot/galculator'...
$ git fetch origin 2450ea1c8cbf2c4b0ed6bad22912502cc4b5a971:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/galculator
 * [new ref]         2450ea1c8cbf2c4b0ed6bad22912502cc4b5a971 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2450ea1 Eliminate use of obsolete %patchN syntax (#2283636)