$ git clone -n https://src.fedoraproject.org/rpms/rust-markup5ever_rcdom.git /var/lib/mock/f40-build-2150535-50897/root/chroot_tmpdir/scmroot/rust-markup5ever_rcdom
Cloning into '/var/lib/mock/f40-build-2150535-50897/root/chroot_tmpdir/scmroot/rust-markup5ever_rcdom'...
$ git fetch origin d91d2a84f8870215f0a1b285778f1943c6dbd9e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-markup5ever_rcdom
 * [new ref]         d91d2a84f8870215f0a1b285778f1943c6dbd9e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d91d2a8 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild