$ git clone -n https://src.fedoraproject.org/rpms/perl-TryCatch.git /var/lib/mock/f45-build-27277-622/root/chroot_tmpdir/scmroot/perl-TryCatch
Cloning into '/var/lib/mock/f45-build-27277-622/root/chroot_tmpdir/scmroot/perl-TryCatch'...
$ git fetch origin ac608a2b7a615c7b41c76422458ba3cf7c984ee7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-TryCatch
 * [new ref]         ac608a2b7a615c7b41c76422458ba3cf7c984ee7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac608a2 Perl 5.44 rebuild