$ git clone -n https://src.fedoraproject.org/rpms/perl-Module-Install-XSUtil.git /var/lib/mock/f45-build-24886-607/root/chroot_tmpdir/scmroot/perl-Module-Install-XSUtil
Cloning into '/var/lib/mock/f45-build-24886-607/root/chroot_tmpdir/scmroot/perl-Module-Install-XSUtil'...
$ git fetch origin 2e1b274513bf2e7d24cddbe7de49f4d8e898c6a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Module-Install-XSUtil
 * [new ref]         2e1b274513bf2e7d24cddbe7de49f4d8e898c6a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2e1b274 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild