$ git clone -n https://src.fedoraproject.org/rpms/jakarta-mail.git /var/lib/mock/f40-build-2510098-61706/root/chroot_tmpdir/scmroot/jakarta-mail
Cloning into '/var/lib/mock/f40-build-2510098-61706/root/chroot_tmpdir/scmroot/jakarta-mail'...
$ git fetch origin 3471e927a17043a50d1ea28b464d95df20867c27:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jakarta-mail
 * [new ref]         3471e927a17043a50d1ea28b464d95df20867c27 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3471e92 Rebuilt for java-21-openjdk as system jdk