$ git clone -n https://src.fedoraproject.org/rpms/perl-Text-Bidi.git /var/lib/mock/f45-build-26980-620/root/chroot_tmpdir/scmroot/perl-Text-Bidi
Cloning into '/var/lib/mock/f45-build-26980-620/root/chroot_tmpdir/scmroot/perl-Text-Bidi'...
$ git fetch origin b521783c89f0a02a14dab43c5bc614dcecde8009:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Text-Bidi
 * [new ref]         b521783c89f0a02a14dab43c5bc614dcecde8009 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b521783 Perl 5.44 rebuild