$ git clone -n https://src.fedoraproject.org/rpms/perl-Regexp-Pattern-DefHash.git /var/lib/mock/f39-build-1643603-40237/root/chroot_tmpdir/scmroot/perl-Regexp-Pattern-DefHash
Cloning into '/var/lib/mock/f39-build-1643603-40237/root/chroot_tmpdir/scmroot/perl-Regexp-Pattern-DefHash'...
$ git fetch origin 2e252ec5902aa7e20b551092be1f4fbfe896590e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Regexp-Pattern-DefHash
 * [new ref]         2e252ec5902aa7e20b551092be1f4fbfe896590e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2e252ec Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild