$ git clone -n https://src.fedoraproject.org/rpms/perl-File-ShareDir-Install.git /var/lib/mock/f45-build-23588-598/root/chroot_tmpdir/scmroot/perl-File-ShareDir-Install
Cloning into '/var/lib/mock/f45-build-23588-598/root/chroot_tmpdir/scmroot/perl-File-ShareDir-Install'...
$ git fetch origin 1ff2b32b601b8ed3db9bf926c82db20919d52832:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-File-ShareDir-Install
 * [new ref]         1ff2b32b601b8ed3db9bf926c82db20919d52832 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ff2b32 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild