$ git clone -n https://src.fedoraproject.org/rpms/perl-File-ShareDir-ProjectDistDir.git /var/lib/mock/f45-build-23591-598/root/chroot_tmpdir/scmroot/perl-File-ShareDir-ProjectDistDir
Cloning into '/var/lib/mock/f45-build-23591-598/root/chroot_tmpdir/scmroot/perl-File-ShareDir-ProjectDistDir'...
$ git fetch origin 267c8ed7abc025c4c2b1b4128f3d1c1d73d8446a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-File-ShareDir-ProjectDistDir
 * [new ref]         267c8ed7abc025c4c2b1b4128f3d1c1d73d8446a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 267c8ed Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild