$ git clone -n https://src.fedoraproject.org/rpms/perl-URL-Encode-XS.git /var/lib/mock/f45-build-27325-622/root/chroot_tmpdir/scmroot/perl-URL-Encode-XS
Cloning into '/var/lib/mock/f45-build-27325-622/root/chroot_tmpdir/scmroot/perl-URL-Encode-XS'...
$ git fetch origin 82f76b48d78c639a8703ae03b80964e84aaa107c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-URL-Encode-XS
 * [new ref]         82f76b48d78c639a8703ae03b80964e84aaa107c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82f76b4 Perl 5.44 rebuild