$ git clone -n https://src.fedoraproject.org/rpms/perl-JavaScript-Minifier.git /var/lib/mock/f45-build-24347-603/root/chroot_tmpdir/scmroot/perl-JavaScript-Minifier
Cloning into '/var/lib/mock/f45-build-24347-603/root/chroot_tmpdir/scmroot/perl-JavaScript-Minifier'...
$ git fetch origin 5aaf2a286705cda2767a7793e4f9e01df5df58f0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-JavaScript-Minifier
 * [new ref]         5aaf2a286705cda2767a7793e4f9e01df5df58f0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5aaf2a2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild