$ git clone -n https://src.fedoraproject.org/rpms/perl-ExtUtils-HasCompiler.git /var/lib/mock/f45-build-23373-597/root/chroot_tmpdir/scmroot/perl-ExtUtils-HasCompiler
Cloning into '/var/lib/mock/f45-build-23373-597/root/chroot_tmpdir/scmroot/perl-ExtUtils-HasCompiler'...
$ git fetch origin f9418bfc5236e309a444e6c9bf3d320c3a3ae0b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-ExtUtils-HasCompiler
 * [new ref]         f9418bfc5236e309a444e6c9bf3d320c3a3ae0b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9418bf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild