$ git clone -n https://src.fedoraproject.org/rpms/libeasyfc.git /var/lib/mock/f39-build-1591808-38298/root/chroot_tmpdir/scmroot/libeasyfc
Cloning into '/var/lib/mock/f39-build-1591808-38298/root/chroot_tmpdir/scmroot/libeasyfc'...
$ git fetch origin e629240efa3d64ba023b9e58b0d50d324f185d31:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libeasyfc
 * [new ref]         e629240efa3d64ba023b9e58b0d50d324f185d31 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e629240 New upstream release.