release-1.12.x crashes on adding an identity

[dovholuknf]

unsure EXACTLY how to reproduce yet. Maybe lars can reproduce.

Manifests in the ZDEW UI like this:

Logs show:

[2022-04-08T12:55:12.689Z]    INFO ziti-edge-tunnel:ziti-edge-tunnel.c:561 on_cmd() received cmd <{"Data":{"JwtFileName":"Lars-GBG-Demo-April4.jwt","JwtContent":"---- redacted ----"},"Command":"AddIdentity"}
>
[2022-04-08T12:55:12.690Z]    INFO ziti_log_set_level set log level: ziti_log_lvl=6 &ziti_log_lvl = 000000000057f480
[2022-04-08T12:55:12.690Z]    INFO ziti-sdk:ziti_enroll.c:92 ziti_enroll() Ziti C SDK version 0.26.29 @cc792e2(HEAD) starting enrollment at (.690)
[2022-04-08T12:55:12.690Z]   DEBUG ziti-sdk:jwt.c:129 load_jwt_content() jwt file content is: -- redacted --- 
[2022-04-08T12:55:12.690Z]   DEBUG ziti-sdk:jwt.c:41 parse_jwt_content() ecfg->jwt_signing_input is:  -- redacted -- 
[2022-04-08T12:55:12.690Z]    INFO ziti-sdk:ziti_ctrl.c:371 ziti_ctrl_init() ctrl[3ab56d89-78e5-4c9c-a3a6-38f85ea334a1.production.netfoundry.io] ziti controller client initialized
[2022-04-08T12:55:12.690Z]   DEBUG ziti-sdk:ziti_ctrl.c:133 start_request() ctrl[3ab56d89-78e5-4c9c-a3a6-38f85ea334a1.production.netfoundry.io] starting GET[/.well-known/est/cacerts]
[2022-04-08T12:56:13.920Z]    INFO ziti-edge-tunnel:ziti-edge-tunnel.c:1678 run() ============================ service begins ================================
[2022-04-08T12:56:13.920Z]    INFO ziti-edge-tunnel:ziti-edge-tunnel.c:1679 run() Logger initialization
[2022-04-08T12:56:13.920Z]    INFO ziti-edge-tunnel:ziti-edge-tunnel.c:1680 run()   - initialized at   : Fri Apr 08 2022, 12:56:13 PM
[2022-04-08T12:56:13.920Z]    INFO ziti-edge-tunnel:ziti-edge-tunnel.c:1681 run()   - log file location: C:\Program Files (x86)\NetFoundry, Inc\Ziti Desktop Edge\/logs/service/ziti-tunneler.log.202204080000.log
[2022-04-08T12:56:13.920Z]    INFO ziti-edge-tunnel:ziti-edge-tunnel.c:1682 run() ============================================================================

[dovholuknf]

fixed