$ git clone -n https://src.fedoraproject.org/rpms/fakeroot.git /var/lib/mock/f40-build-791789-137740/root/chroot_tmpdir/scmroot/fakeroot
Cloning into '/var/lib/mock/f40-build-791789-137740/root/chroot_tmpdir/scmroot/fakeroot'...
$ git fetch origin 54fd604ee8921a895fcae6c74c6989601c1c9bc4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fakeroot
 * [new ref]         54fd604ee8921a895fcae6c74c6989601c1c9bc4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 54fd604 Update fakeroot to 1.33 (#2259446)