$ git clone -n https://src.fedoraproject.org/rpms/perl-re-engine-RE2.git /var/lib/mock/f40-build-779490-130344/root/chroot_tmpdir/scmroot/perl-re-engine-RE2
Cloning into '/var/lib/mock/f40-build-779490-130344/root/chroot_tmpdir/scmroot/perl-re-engine-RE2'...
$ git fetch origin d91ea6ecf29a2e1a24c78b59de3ad0dd717fcc02:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-re-engine-RE2
 * [new ref]         d91ea6ecf29a2e1a24c78b59de3ad0dd717fcc02 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d91ea6e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild